Home / 3,418.61-5,129.73-1,470.69

Finding the Fourth Proportional to 3,418.61, 5,129.73 and 1,470.69

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Solution

The fourth proportional to 3,418.61, 5,129.73 and 1,470.69 is: 2,206.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.61 : 5,129.73 = 1,470.69 : x
  2. Step 2: Convert to fraction form
    3,418.61/5,129.73 = 1,470.69/x
  3. Step 3: Cross multiply
    3,418.61x = 5,129.73 × 1,470.69
  4. Step 4: Simplify right side
    3,418.61x = 7,544,242.61
  5. Step 5: Solve for x
    x = 7,544,242.61/3,418.61
  6. Step 6: Final answer
    x = 2,206.82

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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.