Home / 3,272.15-4,515.62-1,780.10

Finding the Fourth Proportional to 3,272.15, 4,515.62 and 1,780.10

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Solution

The fourth proportional to 3,272.15, 4,515.62 and 1,780.10 is: 2,456.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,272.15 : 4,515.62 = 1,780.10 : x
  2. Step 2: Convert to fraction form
    3,272.15/4,515.62 = 1,780.10/x
  3. Step 3: Cross multiply
    3,272.15x = 4,515.62 × 1,780.10
  4. Step 4: Simplify right side
    3,272.15x = 8,038,223.68
  5. Step 5: Solve for x
    x = 8,038,223.68/3,272.15
  6. Step 6: Final answer
    x = 2,456.56

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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.