Home / 4,095.68-6,143.88-1,321.28

Finding the Fourth Proportional to 4,095.68, 6,143.88 and 1,321.28

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Solution

The fourth proportional to 4,095.68, 6,143.88 and 1,321.28 is: 1,982.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,095.68 : 6,143.88 = 1,321.28 : x
  2. Step 2: Convert to fraction form
    4,095.68/6,143.88 = 1,321.28/x
  3. Step 3: Cross multiply
    4,095.68x = 6,143.88 × 1,321.28
  4. Step 4: Simplify right side
    4,095.68x = 8,117,785.77
  5. Step 5: Solve for x
    x = 8,117,785.77/4,095.68
  6. Step 6: Final answer
    x = 1,982.04

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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.