Home / 5,101.28-7,039.44-2,862.74

Finding the Fourth Proportional to 5,101.28, 7,039.44 and 2,862.74

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Solution

The fourth proportional to 5,101.28, 7,039.44 and 2,862.74 is: 3,950.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,101.28 : 7,039.44 = 2,862.74 : x
  2. Step 2: Convert to fraction form
    5,101.28/7,039.44 = 2,862.74/x
  3. Step 3: Cross multiply
    5,101.28x = 7,039.44 × 2,862.74
  4. Step 4: Simplify right side
    5,101.28x = 20,152,086.47
  5. Step 5: Solve for x
    x = 20,152,086.47/5,101.28
  6. Step 6: Final answer
    x = 3,950.40

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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.