Home / 7,320.75-10,981.31-2,641.16

Finding the Fourth Proportional to 7,320.75, 10,981.31 and 2,641.16

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Solution

The fourth proportional to 7,320.75, 10,981.31 and 2,641.16 is: 3,961.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,320.75 : 10,981.31 = 2,641.16 : x
  2. Step 2: Convert to fraction form
    7,320.75/10,981.31 = 2,641.16/x
  3. Step 3: Cross multiply
    7,320.75x = 10,981.31 × 2,641.16
  4. Step 4: Simplify right side
    7,320.75x = 29,003,328.61
  5. Step 5: Solve for x
    x = 29,003,328.61/7,320.75
  6. Step 6: Final answer
    x = 3,961.80

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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.