Home / 2,470.28-3,408.21-1,422.14

Finding the Fourth Proportional to 2,470.28, 3,408.21 and 1,422.14

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Solution

The fourth proportional to 2,470.28, 3,408.21 and 1,422.14 is: 1,962.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,470.28 : 3,408.21 = 1,422.14 : x
  2. Step 2: Convert to fraction form
    2,470.28/3,408.21 = 1,422.14/x
  3. Step 3: Cross multiply
    2,470.28x = 3,408.21 × 1,422.14
  4. Step 4: Simplify right side
    2,470.28x = 4,846,951.77
  5. Step 5: Solve for x
    x = 4,846,951.77/2,470.28
  6. Step 6: Final answer
    x = 1,962.11

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1.5x scale

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.