Home / 3,031.06-4,543.32-1,275.66

Finding the Fourth Proportional to 3,031.06, 4,543.32 and 1,275.66

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Solution

The fourth proportional to 3,031.06, 4,543.32 and 1,275.66 is: 1,912.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,031.06 : 4,543.32 = 1,275.66 : x
  2. Step 2: Convert to fraction form
    3,031.06/4,543.32 = 1,275.66/x
  3. Step 3: Cross multiply
    3,031.06x = 4,543.32 × 1,275.66
  4. Step 4: Simplify right side
    3,031.06x = 5,795,731.59
  5. Step 5: Solve for x
    x = 5,795,731.59/3,031.06
  6. Step 6: Final answer
    x = 1,912.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.