Home / 2,428.21-3,349.76-1,432.82

Finding the Fourth Proportional to 2,428.21, 3,349.76 and 1,432.82

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Solution

The fourth proportional to 2,428.21, 3,349.76 and 1,432.82 is: 1,976.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,428.21 : 3,349.76 = 1,432.82 : x
  2. Step 2: Convert to fraction form
    2,428.21/3,349.76 = 1,432.82/x
  3. Step 3: Cross multiply
    2,428.21x = 3,349.76 × 1,432.82
  4. Step 4: Simplify right side
    2,428.21x = 4,799,589.96
  5. Step 5: Solve for x
    x = 4,799,589.96/2,428.21
  6. Step 6: Final answer
    x = 1,976.60

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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.