Home / 5,280.02-7,911.27-3,200.55

Finding the Fourth Proportional to 5,280.02, 7,911.27 and 3,200.55

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Solution

The fourth proportional to 5,280.02, 7,911.27 and 3,200.55 is: 4,795.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.02 : 7,911.27 = 3,200.55 : x
  2. Step 2: Convert to fraction form
    5,280.02/7,911.27 = 3,200.55/x
  3. Step 3: Cross multiply
    5,280.02x = 7,911.27 × 3,200.55
  4. Step 4: Simplify right side
    5,280.02x = 25,320,385.53
  5. Step 5: Solve for x
    x = 25,320,385.53/5,280.02
  6. Step 6: Final answer
    x = 4,795.51

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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.