Home / 7,690.74-11,534.85-2,759.46

Finding the Fourth Proportional to 7,690.74, 11,534.85 and 2,759.46

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Solution

The fourth proportional to 7,690.74, 11,534.85 and 2,759.46 is: 4,138.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,690.74 : 11,534.85 = 2,759.46 : x
  2. Step 2: Convert to fraction form
    7,690.74/11,534.85 = 2,759.46/x
  3. Step 3: Cross multiply
    7,690.74x = 11,534.85 × 2,759.46
  4. Step 4: Simplify right side
    7,690.74x = 31,829,957.18
  5. Step 5: Solve for x
    x = 31,829,957.18/7,690.74
  6. Step 6: Final answer
    x = 4,138.74

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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.