Home / 1,357.61-1,871.64-932.22

Finding the Fourth Proportional to 1,357.61, 1,871.64 and 932.22

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Solution

The fourth proportional to 1,357.61, 1,871.64 and 932.22 is: 1,285.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,357.61 : 1,871.64 = 932.22 : x
  2. Step 2: Convert to fraction form
    1,357.61/1,871.64 = 932.22/x
  3. Step 3: Cross multiply
    1,357.61x = 1,871.64 × 932.22
  4. Step 4: Simplify right side
    1,357.61x = 1,744,780.24
  5. Step 5: Solve for x
    x = 1,744,780.24/1,357.61
  6. Step 6: Final answer
    x = 1,285.19

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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.