Home / 1,107.40-1,528.32-610.14

Finding the Fourth Proportional to 1,107.40, 1,528.32 and 610.14

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Solution

The fourth proportional to 1,107.40, 1,528.32 and 610.14 is: 842.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107.40 : 1,528.32 = 610.14 : x
  2. Step 2: Convert to fraction form
    1,107.40/1,528.32 = 610.14/x
  3. Step 3: Cross multiply
    1,107.40x = 1,528.32 × 610.14
  4. Step 4: Simplify right side
    1,107.40x = 932,489.16
  5. Step 5: Solve for x
    x = 932,489.16/1,107.40
  6. Step 6: Final answer
    x = 842.05

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Double scale
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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.