Home / 1,107.40-1,528.14-610.02

Finding the Fourth Proportional to 1,107.40, 1,528.14 and 610.02

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Solution

The fourth proportional to 1,107.40, 1,528.14 and 610.02 is: 841.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107.40 : 1,528.14 = 610.02 : x
  2. Step 2: Convert to fraction form
    1,107.40/1,528.14 = 610.02/x
  3. Step 3: Cross multiply
    1,107.40x = 1,528.14 × 610.02
  4. Step 4: Simplify right side
    1,107.40x = 932,195.96
  5. Step 5: Solve for x
    x = 932,195.96/1,107.40
  6. Step 6: Final answer
    x = 841.79

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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.