Home / 2,480.89-3,423.94-1,432.75

Finding the Fourth Proportional to 2,480.89, 3,423.94 and 1,432.75

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Solution

The fourth proportional to 2,480.89, 3,423.94 and 1,432.75 is: 1,977.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,480.89 : 3,423.94 = 1,432.75 : x
  2. Step 2: Convert to fraction form
    2,480.89/3,423.94 = 1,432.75/x
  3. Step 3: Cross multiply
    2,480.89x = 3,423.94 × 1,432.75
  4. Step 4: Simplify right side
    2,480.89x = 4,905,625.75
  5. Step 5: Solve for x
    x = 4,905,625.75/2,480.89
  6. Step 6: Final answer
    x = 1,977.37

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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.