Home / 7,148.55-10,723.87-2,218.59

Finding the Fourth Proportional to 7,148.55, 10,723.87 and 2,218.59

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Solution

The fourth proportional to 7,148.55, 10,723.87 and 2,218.59 is: 3,328.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,148.55 : 10,723.87 = 2,218.59 : x
  2. Step 2: Convert to fraction form
    7,148.55/10,723.87 = 2,218.59/x
  3. Step 3: Cross multiply
    7,148.55x = 10,723.87 × 2,218.59
  4. Step 4: Simplify right side
    7,148.55x = 23,791,870.74
  5. Step 5: Solve for x
    x = 23,791,870.74/7,148.55
  6. Step 6: Final answer
    x = 3,328.21

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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.