Home / 1,727.64-2,385.23-1,139.18

Finding the Fourth Proportional to 1,727.64, 2,385.23 and 1,139.18

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Solution

The fourth proportional to 1,727.64, 2,385.23 and 1,139.18 is: 1,572.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,727.64 : 2,385.23 = 1,139.18 : x
  2. Step 2: Convert to fraction form
    1,727.64/2,385.23 = 1,139.18/x
  3. Step 3: Cross multiply
    1,727.64x = 2,385.23 × 1,139.18
  4. Step 4: Simplify right side
    1,727.64x = 2,717,188.69
  5. Step 5: Solve for x
    x = 2,717,188.69/1,727.64
  6. Step 6: Final answer
    x = 1,572.77

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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.