Home / 5,280.18-7,287.62-3,394.12

Finding the Fourth Proportional to 5,280.18, 7,287.62 and 3,394.12

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Solution

The fourth proportional to 5,280.18, 7,287.62 and 3,394.12 is: 4,684.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.18 : 7,287.62 = 3,394.12 : x
  2. Step 2: Convert to fraction form
    5,280.18/7,287.62 = 3,394.12/x
  3. Step 3: Cross multiply
    5,280.18x = 7,287.62 × 3,394.12
  4. Step 4: Simplify right side
    5,280.18x = 24,735,056.79
  5. Step 5: Solve for x
    x = 24,735,056.79/5,280.18
  6. Step 6: Final answer
    x = 4,684.51

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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.