Home / 7,275.90-10,040.76-4,132.20

Finding the Fourth Proportional to 7,275.90, 10,040.76 and 4,132.20

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Solution

The fourth proportional to 7,275.90, 10,040.76 and 4,132.20 is: 5,702.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,275.90 : 10,040.76 = 4,132.20 : x
  2. Step 2: Convert to fraction form
    7,275.90/10,040.76 = 4,132.20/x
  3. Step 3: Cross multiply
    7,275.90x = 10,040.76 × 4,132.20
  4. Step 4: Simplify right side
    7,275.90x = 41,490,428.47
  5. Step 5: Solve for x
    x = 41,490,428.47/7,275.90
  6. Step 6: Final answer
    x = 5,702.45

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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.