Home / 5,117.80-7,679.40-2,344.90

Finding the Fourth Proportional to 5,117.80, 7,679.40 and 2,344.90

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Solution

The fourth proportional to 5,117.80, 7,679.40 and 2,344.90 is: 3,518.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,117.80 : 7,679.40 = 2,344.90 : x
  2. Step 2: Convert to fraction form
    5,117.80/7,679.40 = 2,344.90/x
  3. Step 3: Cross multiply
    5,117.80x = 7,679.40 × 2,344.90
  4. Step 4: Simplify right side
    5,117.80x = 18,007,425.06
  5. Step 5: Solve for x
    x = 18,007,425.06/5,117.80
  6. Step 6: Final answer
    x = 3,518.59

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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.