Home / 5,280.64-7,287.20-2,922.73

Finding the Fourth Proportional to 5,280.64, 7,287.20 and 2,922.73

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Solution

The fourth proportional to 5,280.64, 7,287.20 and 2,922.73 is: 4,033.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.64 : 7,287.20 = 2,922.73 : x
  2. Step 2: Convert to fraction form
    5,280.64/7,287.20 = 2,922.73/x
  3. Step 3: Cross multiply
    5,280.64x = 7,287.20 × 2,922.73
  4. Step 4: Simplify right side
    5,280.64x = 21,298,503.44
  5. Step 5: Solve for x
    x = 21,298,503.44/5,280.64
  6. Step 6: Final answer
    x = 4,033.32

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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.