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Finding the Fourth Proportional to 6,290.55, 9,443.10 and 3,374.55

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Solution

The fourth proportional to 6,290.55, 9,443.10 and 3,374.55 is: 5,065.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,290.55 : 9,443.10 = 3,374.55 : x
  2. Step 2: Convert to fraction form
    6,290.55/9,443.10 = 3,374.55/x
  3. Step 3: Cross multiply
    6,290.55x = 9,443.10 × 3,374.55
  4. Step 4: Simplify right side
    6,290.55x = 31,866,213.11
  5. Step 5: Solve for x
    x = 31,866,213.11/6,290.55
  6. Step 6: Final answer
    x = 5,065.73

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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.