Home / 5,280.45-7,286.13-3,291.63

Finding the Fourth Proportional to 5,280.45, 7,286.13 and 3,291.63

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Solution

The fourth proportional to 5,280.45, 7,286.13 and 3,291.63 is: 4,541.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.45 : 7,286.13 = 3,291.63 : x
  2. Step 2: Convert to fraction form
    5,280.45/7,286.13 = 3,291.63/x
  3. Step 3: Cross multiply
    5,280.45x = 7,286.13 × 3,291.63
  4. Step 4: Simplify right side
    5,280.45x = 23,983,244.09
  5. Step 5: Solve for x
    x = 23,983,244.09/5,280.45
  6. Step 6: Final answer
    x = 4,541.89

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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.