Home / 7,278.46-10,907.26-3,117.35

Finding the Fourth Proportional to 7,278.46, 10,907.26 and 3,117.35

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Solution

The fourth proportional to 7,278.46, 10,907.26 and 3,117.35 is: 4,671.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,278.46 : 10,907.26 = 3,117.35 : x
  2. Step 2: Convert to fraction form
    7,278.46/10,907.26 = 3,117.35/x
  3. Step 3: Cross multiply
    7,278.46x = 10,907.26 × 3,117.35
  4. Step 4: Simplify right side
    7,278.46x = 34,001,766.44
  5. Step 5: Solve for x
    x = 34,001,766.44/7,278.46
  6. Step 6: Final answer
    x = 4,671.56

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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.