Home / 3,470.14-5,207.10-1,278.55

Finding the Fourth Proportional to 3,470.14, 5,207.10 and 1,278.55

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Solution

The fourth proportional to 3,470.14, 5,207.10 and 1,278.55 is: 1,918.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,470.14 : 5,207.10 = 1,278.55 : x
  2. Step 2: Convert to fraction form
    3,470.14/5,207.10 = 1,278.55/x
  3. Step 3: Cross multiply
    3,470.14x = 5,207.10 × 1,278.55
  4. Step 4: Simplify right side
    3,470.14x = 6,657,537.71
  5. Step 5: Solve for x
    x = 6,657,537.71/3,470.14
  6. Step 6: Final answer
    x = 1,918.52

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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.