Home / 4,932.80-7,387.05-3,280.40

Finding the Fourth Proportional to 4,932.80, 7,387.05 and 3,280.40

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Solution

The fourth proportional to 4,932.80, 7,387.05 and 3,280.40 is: 4,912.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,932.80 : 7,387.05 = 3,280.40 : x
  2. Step 2: Convert to fraction form
    4,932.80/7,387.05 = 3,280.40/x
  3. Step 3: Cross multiply
    4,932.80x = 7,387.05 × 3,280.40
  4. Step 4: Simplify right side
    4,932.80x = 24,232,478.82
  5. Step 5: Solve for x
    x = 24,232,478.82/4,932.80
  6. Step 6: Final answer
    x = 4,912.52

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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.