Home / 5,280.50-7,280.46-3,388.75

Finding the Fourth Proportional to 5,280.50, 7,280.46 and 3,388.75

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Solution

The fourth proportional to 5,280.50, 7,280.46 and 3,388.75 is: 4,672.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.50 : 7,280.46 = 3,388.75 : x
  2. Step 2: Convert to fraction form
    5,280.50/7,280.46 = 3,388.75/x
  3. Step 3: Cross multiply
    5,280.50x = 7,280.46 × 3,388.75
  4. Step 4: Simplify right side
    5,280.50x = 24,671,622.42
  5. Step 5: Solve for x
    x = 24,671,622.42/5,280.50
  6. Step 6: Final answer
    x = 4,672.21

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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.