Home / 2,429.20-3,350.35-1,434.46

Finding the Fourth Proportional to 2,429.20, 3,350.35 and 1,434.46

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Solution

The fourth proportional to 2,429.20, 3,350.35 and 1,434.46 is: 1,978.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,429.20 : 3,350.35 = 1,434.46 : x
  2. Step 2: Convert to fraction form
    2,429.20/3,350.35 = 1,434.46/x
  3. Step 3: Cross multiply
    2,429.20x = 3,350.35 × 1,434.46
  4. Step 4: Simplify right side
    2,429.20x = 4,805,943.06
  5. Step 5: Solve for x
    x = 4,805,943.06/2,429.20
  6. Step 6: Final answer
    x = 1,978.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.