Home / 7,569.90-11,350.80-2,639.70

Finding the Fourth Proportional to 7,569.90, 11,350.80 and 2,639.70

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Solution

The fourth proportional to 7,569.90, 11,350.80 and 2,639.70 is: 3,958.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,569.90 : 11,350.80 = 2,639.70 : x
  2. Step 2: Convert to fraction form
    7,569.90/11,350.80 = 2,639.70/x
  3. Step 3: Cross multiply
    7,569.90x = 11,350.80 × 2,639.70
  4. Step 4: Simplify right side
    7,569.90x = 29,962,706.76
  5. Step 5: Solve for x
    x = 29,962,706.76/7,569.90
  6. Step 6: Final answer
    x = 3,958.14

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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.