Home / 7,327.24-10,990.71-1,780.61

Finding the Fourth Proportional to 7,327.24, 10,990.71 and 1,780.61

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Solution

The fourth proportional to 7,327.24, 10,990.71 and 1,780.61 is: 2,670.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,327.24 : 10,990.71 = 1,780.61 : x
  2. Step 2: Convert to fraction form
    7,327.24/10,990.71 = 1,780.61/x
  3. Step 3: Cross multiply
    7,327.24x = 10,990.71 × 1,780.61
  4. Step 4: Simplify right side
    7,327.24x = 19,570,186.71
  5. Step 5: Solve for x
    x = 19,570,186.71/7,327.24
  6. Step 6: Final answer
    x = 2,670.88

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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.