Home / 1,727.62-2,384.17-981.74

Finding the Fourth Proportional to 1,727.62, 2,384.17 and 981.74

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Solution

The fourth proportional to 1,727.62, 2,384.17 and 981.74 is: 1,354.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,727.62 : 2,384.17 = 981.74 : x
  2. Step 2: Convert to fraction form
    1,727.62/2,384.17 = 981.74/x
  3. Step 3: Cross multiply
    1,727.62x = 2,384.17 × 981.74
  4. Step 4: Simplify right side
    1,727.62x = 2,340,638.56
  5. Step 5: Solve for x
    x = 2,340,638.56/1,727.62
  6. Step 6: Final answer
    x = 1,354.84

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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.