Home / 5,280.74-7,287.38-3,041.78

Finding the Fourth Proportional to 5,280.74, 7,287.38 and 3,041.78

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Solution

The fourth proportional to 5,280.74, 7,287.38 and 3,041.78 is: 4,197.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.74 : 7,287.38 = 3,041.78 : x
  2. Step 2: Convert to fraction form
    5,280.74/7,287.38 = 3,041.78/x
  3. Step 3: Cross multiply
    5,280.74x = 7,287.38 × 3,041.78
  4. Step 4: Simplify right side
    5,280.74x = 22,166,606.74
  5. Step 5: Solve for x
    x = 22,166,606.74/5,280.74
  6. Step 6: Final answer
    x = 4,197.63

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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.