Home / 5,161.60-7,116.12-4,102.88

Finding the Fourth Proportional to 5,161.60, 7,116.12 and 4,102.88

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Solution

The fourth proportional to 5,161.60, 7,116.12 and 4,102.88 is: 5,656.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,161.60 : 7,116.12 = 4,102.88 : x
  2. Step 2: Convert to fraction form
    5,161.60/7,116.12 = 4,102.88/x
  3. Step 3: Cross multiply
    5,161.60x = 7,116.12 × 4,102.88
  4. Step 4: Simplify right side
    5,161.60x = 29,196,586.43
  5. Step 5: Solve for x
    x = 29,196,586.43/5,161.60
  6. Step 6: Final answer
    x = 5,656.50

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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.