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Finding the Fourth Proportional to 1,663.24, 2,494.02 and 970.12

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Solution

The fourth proportional to 1,663.24, 2,494.02 and 970.12 is: 1,454.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,663.24 : 2,494.02 = 970.12 : x
  2. Step 2: Convert to fraction form
    1,663.24/2,494.02 = 970.12/x
  3. Step 3: Cross multiply
    1,663.24x = 2,494.02 × 970.12
  4. Step 4: Simplify right side
    1,663.24x = 2,419,498.68
  5. Step 5: Solve for x
    x = 2,419,498.68/1,663.24
  6. Step 6: Final answer
    x = 1,454.69

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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.