Home / 1,607.58-2,218.59-1,345.14

Finding the Fourth Proportional to 1,607.58, 2,218.59 and 1,345.14

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Solution

The fourth proportional to 1,607.58, 2,218.59 and 1,345.14 is: 1,856.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,607.58 : 2,218.59 = 1,345.14 : x
  2. Step 2: Convert to fraction form
    1,607.58/2,218.59 = 1,345.14/x
  3. Step 3: Cross multiply
    1,607.58x = 2,218.59 × 1,345.14
  4. Step 4: Simplify right side
    1,607.58x = 2,984,314.15
  5. Step 5: Solve for x
    x = 2,984,314.15/1,607.58
  6. Step 6: Final answer
    x = 1,856.40

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Half scale
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Double scale
Find fourth proportional to 1,608.58, 2,219.97 and 1,346.14
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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.