Home / 2,276.54-3,142.14-1,393.08

Finding the Fourth Proportional to 2,276.54, 3,142.14 and 1,393.08

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Solution

The fourth proportional to 2,276.54, 3,142.14 and 1,393.08 is: 1,922.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,276.54 : 3,142.14 = 1,393.08 : x
  2. Step 2: Convert to fraction form
    2,276.54/3,142.14 = 1,393.08/x
  3. Step 3: Cross multiply
    2,276.54x = 3,142.14 × 1,393.08
  4. Step 4: Simplify right side
    2,276.54x = 4,377,252.39
  5. Step 5: Solve for x
    x = 4,377,252.39/2,276.54
  6. Step 6: Final answer
    x = 1,922.77

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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.