Home / 5,272.11-7,278.90-3,384.50

Finding the Fourth Proportional to 5,272.11, 7,278.90 and 3,384.50

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Solution

The fourth proportional to 5,272.11, 7,278.90 and 3,384.50 is: 4,672.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,272.11 : 7,278.90 = 3,384.50 : x
  2. Step 2: Convert to fraction form
    5,272.11/7,278.90 = 3,384.50/x
  3. Step 3: Cross multiply
    5,272.11x = 7,278.90 × 3,384.50
  4. Step 4: Simplify right side
    5,272.11x = 24,635,437.05
  5. Step 5: Solve for x
    x = 24,635,437.05/5,272.11
  6. Step 6: Final answer
    x = 4,672.79

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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.