Home / 3,785.92-5,221.76-2,607.36

Finding the Fourth Proportional to 3,785.92, 5,221.76 and 2,607.36

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Solution

The fourth proportional to 3,785.92, 5,221.76 and 2,607.36 is: 3,596.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,785.92 : 5,221.76 = 2,607.36 : x
  2. Step 2: Convert to fraction form
    3,785.92/5,221.76 = 2,607.36/x
  3. Step 3: Cross multiply
    3,785.92x = 5,221.76 × 2,607.36
  4. Step 4: Simplify right side
    3,785.92x = 13,615,008.15
  5. Step 5: Solve for x
    x = 13,615,008.15/3,785.92
  6. Step 6: Final answer
    x = 3,596.22

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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.