Home / 3,531.72-4,862.64-2,999.55

Finding the Fourth Proportional to 3,531.72, 4,862.64 and 2,999.55

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Solution

The fourth proportional to 3,531.72, 4,862.64 and 2,999.55 is: 4,129.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,531.72 : 4,862.64 = 2,999.55 : x
  2. Step 2: Convert to fraction form
    3,531.72/4,862.64 = 2,999.55/x
  3. Step 3: Cross multiply
    3,531.72x = 4,862.64 × 2,999.55
  4. Step 4: Simplify right side
    3,531.72x = 14,585,731.81
  5. Step 5: Solve for x
    x = 14,585,731.81/3,531.72
  6. Step 6: Final answer
    x = 4,129.92

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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.