Home / 1,585.32-2,376.96-661.52

Finding the Fourth Proportional to 1,585.32, 2,376.96 and 661.52

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Solution

The fourth proportional to 1,585.32, 2,376.96 and 661.52 is: 991.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,585.32 : 2,376.96 = 661.52 : x
  2. Step 2: Convert to fraction form
    1,585.32/2,376.96 = 661.52/x
  3. Step 3: Cross multiply
    1,585.32x = 2,376.96 × 661.52
  4. Step 4: Simplify right side
    1,585.32x = 1,572,394.69
  5. Step 5: Solve for x
    x = 1,572,394.69/1,585.32
  6. Step 6: Final answer
    x = 991.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.