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Finding the Fourth Proportional to 1,607.94, 2,219.39 and 1,234.32

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Solution

The fourth proportional to 1,607.94, 2,219.39 and 1,234.32 is: 1,703.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,607.94 : 2,219.39 = 1,234.32 : x
  2. Step 2: Convert to fraction form
    1,607.94/2,219.39 = 1,234.32/x
  3. Step 3: Cross multiply
    1,607.94x = 2,219.39 × 1,234.32
  4. Step 4: Simplify right side
    1,607.94x = 2,739,431.29
  5. Step 5: Solve for x
    x = 2,739,431.29/1,607.94
  6. Step 6: Final answer
    x = 1,703.69

Related Problems

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Half scale
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Double scale
Find fourth proportional to 1,608.94, 2,220.77 and 1,235.32
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.