Home / 5,280.60-7,287.40-3,042.30

Finding the Fourth Proportional to 5,280.60, 7,287.40 and 3,042.30

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Solution

The fourth proportional to 5,280.60, 7,287.40 and 3,042.30 is: 4,198.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.60 : 7,287.40 = 3,042.30 : x
  2. Step 2: Convert to fraction form
    5,280.60/7,287.40 = 3,042.30/x
  3. Step 3: Cross multiply
    5,280.60x = 7,287.40 × 3,042.30
  4. Step 4: Simplify right side
    5,280.60x = 22,170,457.02
  5. Step 5: Solve for x
    x = 22,170,457.02/5,280.60
  6. Step 6: Final answer
    x = 4,198.47

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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.