Home / 2,143.88-2,957.04-1,358.44

Finding the Fourth Proportional to 2,143.88, 2,957.04 and 1,358.44

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Solution

The fourth proportional to 2,143.88, 2,957.04 and 1,358.44 is: 1,873.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,143.88 : 2,957.04 = 1,358.44 : x
  2. Step 2: Convert to fraction form
    2,143.88/2,957.04 = 1,358.44/x
  3. Step 3: Cross multiply
    2,143.88x = 2,957.04 × 1,358.44
  4. Step 4: Simplify right side
    2,143.88x = 4,016,961.42
  5. Step 5: Solve for x
    x = 4,016,961.42/2,143.88
  6. Step 6: Final answer
    x = 1,873.69

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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.