Home / 7,275.24-10,040.40-4,131.72

Finding the Fourth Proportional to 7,275.24, 10,040.40 and 4,131.72

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Solution

The fourth proportional to 7,275.24, 10,040.40 and 4,131.72 is: 5,702.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,275.24 : 10,040.40 = 4,131.72 : x
  2. Step 2: Convert to fraction form
    7,275.24/10,040.40 = 4,131.72/x
  3. Step 3: Cross multiply
    7,275.24x = 10,040.40 × 4,131.72
  4. Step 4: Simplify right side
    7,275.24x = 41,484,121.49
  5. Step 5: Solve for x
    x = 41,484,121.49/7,275.24
  6. Step 6: Final answer
    x = 5,702.10

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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.