Home / 5,169.86-7,139.45-4,419.46

Finding the Fourth Proportional to 5,169.86, 7,139.45 and 4,419.46

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Solution

The fourth proportional to 5,169.86, 7,139.45 and 4,419.46 is: 6,103.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,169.86 : 7,139.45 = 4,419.46 : x
  2. Step 2: Convert to fraction form
    5,169.86/7,139.45 = 4,419.46/x
  3. Step 3: Cross multiply
    5,169.86x = 7,139.45 × 4,419.46
  4. Step 4: Simplify right side
    5,169.86x = 31,552,506.90
  5. Step 5: Solve for x
    x = 31,552,506.90/5,169.86
  6. Step 6: Final answer
    x = 6,103.17

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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.