Home / 2,818.32-4,223.68-1,172.92

Finding the Fourth Proportional to 2,818.32, 4,223.68 and 1,172.92

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Solution

The fourth proportional to 2,818.32, 4,223.68 and 1,172.92 is: 1,757.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,818.32 : 4,223.68 = 1,172.92 : x
  2. Step 2: Convert to fraction form
    2,818.32/4,223.68 = 1,172.92/x
  3. Step 3: Cross multiply
    2,818.32x = 4,223.68 × 1,172.92
  4. Step 4: Simplify right side
    2,818.32x = 4,954,038.75
  5. Step 5: Solve for x
    x = 4,954,038.75/2,818.32
  6. Step 6: Final answer
    x = 1,757.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.