Home / 5,275.70-7,280.46-3,180.23

Finding the Fourth Proportional to 5,275.70, 7,280.46 and 3,180.23

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Solution

The fourth proportional to 5,275.70, 7,280.46 and 3,180.23 is: 4,388.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,275.70 : 7,280.46 = 3,180.23 : x
  2. Step 2: Convert to fraction form
    5,275.70/7,280.46 = 3,180.23/x
  3. Step 3: Cross multiply
    5,275.70x = 7,280.46 × 3,180.23
  4. Step 4: Simplify right side
    5,275.70x = 23,153,500.90
  5. Step 5: Solve for x
    x = 23,153,500.90/5,275.70
  6. Step 6: Final answer
    x = 4,388.71

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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.