Home / 3,470.04-5,205.87-1,278.99

Finding the Fourth Proportional to 3,470.04, 5,205.87 and 1,278.99

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Solution

The fourth proportional to 3,470.04, 5,205.87 and 1,278.99 is: 1,918.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,470.04 : 5,205.87 = 1,278.99 : x
  2. Step 2: Convert to fraction form
    3,470.04/5,205.87 = 1,278.99/x
  3. Step 3: Cross multiply
    3,470.04x = 5,205.87 × 1,278.99
  4. Step 4: Simplify right side
    3,470.04x = 6,658,255.67
  5. Step 5: Solve for x
    x = 6,658,255.67/3,470.04
  6. Step 6: Final answer
    x = 1,918.78

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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.