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Finding the Fourth Proportional to 3,417.78, 5,126.80 and 952.80

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Solution

The fourth proportional to 3,417.78, 5,126.80 and 952.80 is: 1,429.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,417.78 : 5,126.80 = 952.80 : x
  2. Step 2: Convert to fraction form
    3,417.78/5,126.80 = 952.80/x
  3. Step 3: Cross multiply
    3,417.78x = 5,126.80 × 952.80
  4. Step 4: Simplify right side
    3,417.78x = 4,884,815.04
  5. Step 5: Solve for x
    x = 4,884,815.04/3,417.78
  6. Step 6: Final answer
    x = 1,429.24

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1.5x scale

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.