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Finding the Fourth Proportional to 5,678.64, 8,515.08 and 2,598

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Solution

The fourth proportional to 5,678.64, 8,515.08 and 2,598 is: 3,895.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,678.64 : 8,515.08 = 2,598 : x
  2. Step 2: Convert to fraction form
    5,678.64/8,515.08 = 2,598/x
  3. Step 3: Cross multiply
    5,678.64x = 8,515.08 × 2,598
  4. Step 4: Simplify right side
    5,678.64x = 22,122,177.84
  5. Step 5: Solve for x
    x = 22,122,177.84/5,678.64
  6. Step 6: Final answer
    x = 3,895.68

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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.