Home / 3,242.88-4,465.76-2,817.32

Finding the Fourth Proportional to 3,242.88, 4,465.76 and 2,817.32

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Solution

The fourth proportional to 3,242.88, 4,465.76 and 2,817.32 is: 3,879.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,242.88 : 4,465.76 = 2,817.32 : x
  2. Step 2: Convert to fraction form
    3,242.88/4,465.76 = 2,817.32/x
  3. Step 3: Cross multiply
    3,242.88x = 4,465.76 × 2,817.32
  4. Step 4: Simplify right side
    3,242.88x = 12,581,459.68
  5. Step 5: Solve for x
    x = 12,581,459.68/3,242.88
  6. Step 6: Final answer
    x = 3,879.72

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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.