Home / 5,122.19-7,677.81-3,656.90

Finding the Fourth Proportional to 5,122.19, 7,677.81 and 3,656.90

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Solution

The fourth proportional to 5,122.19, 7,677.81 and 3,656.90 is: 5,481.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.19 : 7,677.81 = 3,656.90 : x
  2. Step 2: Convert to fraction form
    5,122.19/7,677.81 = 3,656.90/x
  3. Step 3: Cross multiply
    5,122.19x = 7,677.81 × 3,656.90
  4. Step 4: Simplify right side
    5,122.19x = 28,077,002.58
  5. Step 5: Solve for x
    x = 28,077,002.58/5,122.19
  6. Step 6: Final answer
    x = 5,481.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.