Home / 3,720.98-5,135.02-2,042.55

Finding the Fourth Proportional to 3,720.98, 5,135.02 and 2,042.55

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Solution

The fourth proportional to 3,720.98, 5,135.02 and 2,042.55 is: 2,818.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.98 : 5,135.02 = 2,042.55 : x
  2. Step 2: Convert to fraction form
    3,720.98/5,135.02 = 2,042.55/x
  3. Step 3: Cross multiply
    3,720.98x = 5,135.02 × 2,042.55
  4. Step 4: Simplify right side
    3,720.98x = 10,488,509.43
  5. Step 5: Solve for x
    x = 10,488,509.43/3,720.98
  6. Step 6: Final answer
    x = 2,818.75

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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.