Home / 4,039.12-5,572.56-2,642.68

Finding the Fourth Proportional to 4,039.12, 5,572.56 and 2,642.68

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Solution

The fourth proportional to 4,039.12, 5,572.56 and 2,642.68 is: 3,645.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,039.12 : 5,572.56 = 2,642.68 : x
  2. Step 2: Convert to fraction form
    4,039.12/5,572.56 = 2,642.68/x
  3. Step 3: Cross multiply
    4,039.12x = 5,572.56 × 2,642.68
  4. Step 4: Simplify right side
    4,039.12x = 14,726,492.86
  5. Step 5: Solve for x
    x = 14,726,492.86/4,039.12
  6. Step 6: Final answer
    x = 3,645.97

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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.