Home / 5,280.62-7,284.06-3,391.56

Finding the Fourth Proportional to 5,280.62, 7,284.06 and 3,391.56

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Solution

The fourth proportional to 5,280.62, 7,284.06 and 3,391.56 is: 4,678.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.62 : 7,284.06 = 3,391.56 : x
  2. Step 2: Convert to fraction form
    5,280.62/7,284.06 = 3,391.56/x
  3. Step 3: Cross multiply
    5,280.62x = 7,284.06 × 3,391.56
  4. Step 4: Simplify right side
    5,280.62x = 24,704,326.53
  5. Step 5: Solve for x
    x = 24,704,326.53/5,280.62
  6. Step 6: Final answer
    x = 4,678.30

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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.