Home / 5,191.04-7,789.80-2,113.04

Finding the Fourth Proportional to 5,191.04, 7,789.80 and 2,113.04

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Solution

The fourth proportional to 5,191.04, 7,789.80 and 2,113.04 is: 3,170.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,191.04 : 7,789.80 = 2,113.04 : x
  2. Step 2: Convert to fraction form
    5,191.04/7,789.80 = 2,113.04/x
  3. Step 3: Cross multiply
    5,191.04x = 7,789.80 × 2,113.04
  4. Step 4: Simplify right side
    5,191.04x = 16,460,158.99
  5. Step 5: Solve for x
    x = 16,460,158.99/5,191.04
  6. Step 6: Final answer
    x = 3,170.88

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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.