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Finding the Fourth Proportional to 2,972.76, 4,458.78 and 1,024.80

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Solution

The fourth proportional to 2,972.76, 4,458.78 and 1,024.80 is: 1,537.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,972.76 : 4,458.78 = 1,024.80 : x
  2. Step 2: Convert to fraction form
    2,972.76/4,458.78 = 1,024.80/x
  3. Step 3: Cross multiply
    2,972.76x = 4,458.78 × 1,024.80
  4. Step 4: Simplify right side
    2,972.76x = 4,569,357.74
  5. Step 5: Solve for x
    x = 4,569,357.74/2,972.76
  6. Step 6: Final answer
    x = 1,537.08

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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.