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Finding the Fourth Proportional to 1,253.02, 1,730.02 and 968.92

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Solution

The fourth proportional to 1,253.02, 1,730.02 and 968.92 is: 1,337.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253.02 : 1,730.02 = 968.92 : x
  2. Step 2: Convert to fraction form
    1,253.02/1,730.02 = 968.92/x
  3. Step 3: Cross multiply
    1,253.02x = 1,730.02 × 968.92
  4. Step 4: Simplify right side
    1,253.02x = 1,676,250.98
  5. Step 5: Solve for x
    x = 1,676,250.98/1,253.02
  6. Step 6: Final answer
    x = 1,337.77

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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.