Home / 3,869.22-5,337.45-2,688.24

Finding the Fourth Proportional to 3,869.22, 5,337.45 and 2,688.24

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Solution

The fourth proportional to 3,869.22, 5,337.45 and 2,688.24 is: 3,708.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,869.22 : 5,337.45 = 2,688.24 : x
  2. Step 2: Convert to fraction form
    3,869.22/5,337.45 = 2,688.24/x
  3. Step 3: Cross multiply
    3,869.22x = 5,337.45 × 2,688.24
  4. Step 4: Simplify right side
    3,869.22x = 14,348,346.59
  5. Step 5: Solve for x
    x = 14,348,346.59/3,869.22
  6. Step 6: Final answer
    x = 3,708.33

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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.