Home / 3,207.92-4,428.68-2,165.52

Finding the Fourth Proportional to 3,207.92, 4,428.68 and 2,165.52

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Solution

The fourth proportional to 3,207.92, 4,428.68 and 2,165.52 is: 2,989.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,207.92 : 4,428.68 = 2,165.52 : x
  2. Step 2: Convert to fraction form
    3,207.92/4,428.68 = 2,165.52/x
  3. Step 3: Cross multiply
    3,207.92x = 4,428.68 × 2,165.52
  4. Step 4: Simplify right side
    3,207.92x = 9,590,395.11
  5. Step 5: Solve for x
    x = 9,590,395.11/3,207.92
  6. Step 6: Final answer
    x = 2,989.60

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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.