Home / 3,031.18-4,182.65-1,755.28

Finding the Fourth Proportional to 3,031.18, 4,182.65 and 1,755.28

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Solution

The fourth proportional to 3,031.18, 4,182.65 and 1,755.28 is: 2,422.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,031.18 : 4,182.65 = 1,755.28 : x
  2. Step 2: Convert to fraction form
    3,031.18/4,182.65 = 1,755.28/x
  3. Step 3: Cross multiply
    3,031.18x = 4,182.65 × 1,755.28
  4. Step 4: Simplify right side
    3,031.18x = 7,341,721.89
  5. Step 5: Solve for x
    x = 7,341,721.89/3,031.18
  6. Step 6: Final answer
    x = 2,422.07

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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.