Home / 5,280.71-7,279.61-4,019.57

Finding the Fourth Proportional to 5,280.71, 7,279.61 and 4,019.57

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Solution

The fourth proportional to 5,280.71, 7,279.61 and 4,019.57 is: 5,541.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.71 : 7,279.61 = 4,019.57 : x
  2. Step 2: Convert to fraction form
    5,280.71/7,279.61 = 4,019.57/x
  3. Step 3: Cross multiply
    5,280.71x = 7,279.61 × 4,019.57
  4. Step 4: Simplify right side
    5,280.71x = 29,260,845.47
  5. Step 5: Solve for x
    x = 29,260,845.47/5,280.71
  6. Step 6: Final answer
    x = 5,541.09

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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.