Home / 7,215.75-10,821.96-2,284.47

Finding the Fourth Proportional to 7,215.75, 10,821.96 and 2,284.47

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Solution

The fourth proportional to 7,215.75, 10,821.96 and 2,284.47 is: 3,426.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,215.75 : 10,821.96 = 2,284.47 : x
  2. Step 2: Convert to fraction form
    7,215.75/10,821.96 = 2,284.47/x
  3. Step 3: Cross multiply
    7,215.75x = 10,821.96 × 2,284.47
  4. Step 4: Simplify right side
    7,215.75x = 24,722,442.96
  5. Step 5: Solve for x
    x = 24,722,442.96/7,215.75
  6. Step 6: Final answer
    x = 3,426.18

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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.