Home / 7,278.65-10,919.19-2,281.35

Finding the Fourth Proportional to 7,278.65, 10,919.19 and 2,281.35

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Solution

The fourth proportional to 7,278.65, 10,919.19 and 2,281.35 is: 3,422.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,278.65 : 10,919.19 = 2,281.35 : x
  2. Step 2: Convert to fraction form
    7,278.65/10,919.19 = 2,281.35/x
  3. Step 3: Cross multiply
    7,278.65x = 10,919.19 × 2,281.35
  4. Step 4: Simplify right side
    7,278.65x = 24,910,494.11
  5. Step 5: Solve for x
    x = 24,910,494.11/7,278.65
  6. Step 6: Final answer
    x = 3,422.41

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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.