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Finding the Fourth Proportional to 1,455.92, 2,184.35 and 482.71

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Solution

The fourth proportional to 1,455.92, 2,184.35 and 482.71 is: 724.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455.92 : 2,184.35 = 482.71 : x
  2. Step 2: Convert to fraction form
    1,455.92/2,184.35 = 482.71/x
  3. Step 3: Cross multiply
    1,455.92x = 2,184.35 × 482.71
  4. Step 4: Simplify right side
    1,455.92x = 1,054,399.71
  5. Step 5: Solve for x
    x = 1,054,399.71/1,455.92
  6. Step 6: Final answer
    x = 724.21

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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.