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Finding the Fourth Proportional to 6,363.83, 8,785.10 and 4,242.90

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Solution

The fourth proportional to 6,363.83, 8,785.10 and 4,242.90 is: 5,857.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,363.83 : 8,785.10 = 4,242.90 : x
  2. Step 2: Convert to fraction form
    6,363.83/8,785.10 = 4,242.90/x
  3. Step 3: Cross multiply
    6,363.83x = 8,785.10 × 4,242.90
  4. Step 4: Simplify right side
    6,363.83x = 37,274,279.58
  5. Step 5: Solve for x
    x = 37,274,279.58/6,363.83
  6. Step 6: Final answer
    x = 5,857.21

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1.5x scale

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.