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Finding the Fourth Proportional to 3,647.04, 5,470.56 and 2,915.64

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Solution

The fourth proportional to 3,647.04, 5,470.56 and 2,915.64 is: 4,373.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,647.04 : 5,470.56 = 2,915.64 : x
  2. Step 2: Convert to fraction form
    3,647.04/5,470.56 = 2,915.64/x
  3. Step 3: Cross multiply
    3,647.04x = 5,470.56 × 2,915.64
  4. Step 4: Simplify right side
    3,647.04x = 15,950,183.56
  5. Step 5: Solve for x
    x = 15,950,183.56/3,647.04
  6. Step 6: Final answer
    x = 4,373.46

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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.