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Finding the Fourth Proportional to 5,817.78, 8,713.08 and 4,253.90

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Solution

The fourth proportional to 5,817.78, 8,713.08 and 4,253.90 is: 6,370.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,817.78 : 8,713.08 = 4,253.90 : x
  2. Step 2: Convert to fraction form
    5,817.78/8,713.08 = 4,253.90/x
  3. Step 3: Cross multiply
    5,817.78x = 8,713.08 × 4,253.90
  4. Step 4: Simplify right side
    5,817.78x = 37,064,527.45
  5. Step 5: Solve for x
    x = 37,064,527.45/5,817.78
  6. Step 6: Final answer
    x = 6,370.91

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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.