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Finding the Fourth Proportional to 3,264.90, 4,898.15 and 956.40

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Solution

The fourth proportional to 3,264.90, 4,898.15 and 956.40 is: 1,434.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,264.90 : 4,898.15 = 956.40 : x
  2. Step 2: Convert to fraction form
    3,264.90/4,898.15 = 956.40/x
  3. Step 3: Cross multiply
    3,264.90x = 4,898.15 × 956.40
  4. Step 4: Simplify right side
    3,264.90x = 4,684,571.10
  5. Step 5: Solve for x
    x = 4,684,571.10/3,264.90
  6. Step 6: Final answer
    x = 1,434.83

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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.