Home / 5,276.46-7,280.60-3,287.64

Finding the Fourth Proportional to 5,276.46, 7,280.60 and 3,287.64

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Solution

The fourth proportional to 5,276.46, 7,280.60 and 3,287.64 is: 4,536.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,276.46 : 7,280.60 = 3,287.64 : x
  2. Step 2: Convert to fraction form
    5,276.46/7,280.60 = 3,287.64/x
  3. Step 3: Cross multiply
    5,276.46x = 7,280.60 × 3,287.64
  4. Step 4: Simplify right side
    5,276.46x = 23,935,991.78
  5. Step 5: Solve for x
    x = 23,935,991.78/5,276.46
  6. Step 6: Final answer
    x = 4,536.37

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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.