Home / 1,424.58-1,966.46-1,224.61

Finding the Fourth Proportional to 1,424.58, 1,966.46 and 1,224.61

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Solution

The fourth proportional to 1,424.58, 1,966.46 and 1,224.61 is: 1,690.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424.58 : 1,966.46 = 1,224.61 : x
  2. Step 2: Convert to fraction form
    1,424.58/1,966.46 = 1,224.61/x
  3. Step 3: Cross multiply
    1,424.58x = 1,966.46 × 1,224.61
  4. Step 4: Simplify right side
    1,424.58x = 2,408,146.58
  5. Step 5: Solve for x
    x = 2,408,146.58/1,424.58
  6. Step 6: Final answer
    x = 1,690.43

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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.