Home / 3,989.32-5,505.76-2,417.42

Finding the Fourth Proportional to 3,989.32, 5,505.76 and 2,417.42

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Solution

The fourth proportional to 3,989.32, 5,505.76 and 2,417.42 is: 3,336.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,989.32 : 5,505.76 = 2,417.42 : x
  2. Step 2: Convert to fraction form
    3,989.32/5,505.76 = 2,417.42/x
  3. Step 3: Cross multiply
    3,989.32x = 5,505.76 × 2,417.42
  4. Step 4: Simplify right side
    3,989.32x = 13,309,734.34
  5. Step 5: Solve for x
    x = 13,309,734.34/3,989.32
  6. Step 6: Final answer
    x = 3,336.34

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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.