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Finding the Fourth Proportional to 5,857.38, 8,785.13 and 1,960.88

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Solution

The fourth proportional to 5,857.38, 8,785.13 and 1,960.88 is: 2,941.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,857.38 : 8,785.13 = 1,960.88 : x
  2. Step 2: Convert to fraction form
    5,857.38/8,785.13 = 1,960.88/x
  3. Step 3: Cross multiply
    5,857.38x = 8,785.13 × 1,960.88
  4. Step 4: Simplify right side
    5,857.38x = 17,226,531.98
  5. Step 5: Solve for x
    x = 17,226,531.98/5,857.38
  6. Step 6: Final answer
    x = 2,941.00

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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.