Home / 1,727.88-2,384.58-1,139.52

Finding the Fourth Proportional to 1,727.88, 2,384.58 and 1,139.52

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Solution

The fourth proportional to 1,727.88, 2,384.58 and 1,139.52 is: 1,572.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,727.88 : 2,384.58 = 1,139.52 : x
  2. Step 2: Convert to fraction form
    1,727.88/2,384.58 = 1,139.52/x
  3. Step 3: Cross multiply
    1,727.88x = 2,384.58 × 1,139.52
  4. Step 4: Simplify right side
    1,727.88x = 2,717,276.60
  5. Step 5: Solve for x
    x = 2,717,276.60/1,727.88
  6. Step 6: Final answer
    x = 1,572.61

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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.