Home / 5,101.18-7,039.38-2,862.70

Finding the Fourth Proportional to 5,101.18, 7,039.38 and 2,862.70

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Solution

The fourth proportional to 5,101.18, 7,039.38 and 2,862.70 is: 3,950.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,101.18 : 7,039.38 = 2,862.70 : x
  2. Step 2: Convert to fraction form
    5,101.18/7,039.38 = 2,862.70/x
  3. Step 3: Cross multiply
    5,101.18x = 7,039.38 × 2,862.70
  4. Step 4: Simplify right side
    5,101.18x = 20,151,633.13
  5. Step 5: Solve for x
    x = 20,151,633.13/5,101.18
  6. Step 6: Final answer
    x = 3,950.39

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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.