Home / 1,585.32-2,376.54-719.28

Finding the Fourth Proportional to 1,585.32, 2,376.54 and 719.28

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Solution

The fourth proportional to 1,585.32, 2,376.54 and 719.28 is: 1,078.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,585.32 : 2,376.54 = 719.28 : x
  2. Step 2: Convert to fraction form
    1,585.32/2,376.54 = 719.28/x
  3. Step 3: Cross multiply
    1,585.32x = 2,376.54 × 719.28
  4. Step 4: Simplify right side
    1,585.32x = 1,709,397.69
  5. Step 5: Solve for x
    x = 1,709,397.69/1,585.32
  6. Step 6: Final answer
    x = 1,078.27

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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.