Home / 5,278.50-7,280.37-4,443.66

Finding the Fourth Proportional to 5,278.50, 7,280.37 and 4,443.66

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Solution

The fourth proportional to 5,278.50, 7,280.37 and 4,443.66 is: 6,128.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,278.50 : 7,280.37 = 4,443.66 : x
  2. Step 2: Convert to fraction form
    5,278.50/7,280.37 = 4,443.66/x
  3. Step 3: Cross multiply
    5,278.50x = 7,280.37 × 4,443.66
  4. Step 4: Simplify right side
    5,278.50x = 32,351,488.95
  5. Step 5: Solve for x
    x = 32,351,488.95/5,278.50
  6. Step 6: Final answer
    x = 6,128.92

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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.