Home / 7,321.15-10,981.86-2,641.51

Finding the Fourth Proportional to 7,321.15, 10,981.86 and 2,641.51

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Solution

The fourth proportional to 7,321.15, 10,981.86 and 2,641.51 is: 3,962.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,321.15 : 10,981.86 = 2,641.51 : x
  2. Step 2: Convert to fraction form
    7,321.15/10,981.86 = 2,641.51/x
  3. Step 3: Cross multiply
    7,321.15x = 10,981.86 × 2,641.51
  4. Step 4: Simplify right side
    7,321.15x = 29,008,693.01
  5. Step 5: Solve for x
    x = 29,008,693.01/7,321.15
  6. Step 6: Final answer
    x = 3,962.31

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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.