Home / 2,118.37-2,924.13-1,234.18

Finding the Fourth Proportional to 2,118.37, 2,924.13 and 1,234.18

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Solution

The fourth proportional to 2,118.37, 2,924.13 and 1,234.18 is: 1,703.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118.37 : 2,924.13 = 1,234.18 : x
  2. Step 2: Convert to fraction form
    2,118.37/2,924.13 = 1,234.18/x
  3. Step 3: Cross multiply
    2,118.37x = 2,924.13 × 1,234.18
  4. Step 4: Simplify right side
    2,118.37x = 3,608,902.76
  5. Step 5: Solve for x
    x = 3,608,902.76/2,118.37
  6. Step 6: Final answer
    x = 1,703.62

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Half scale
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Double scale
Find fourth proportional to 2,119.37, 2,925.51 and 1,235.18
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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.