Home / 1,957.38-2,700.96-1,117.80

Finding the Fourth Proportional to 1,957.38, 2,700.96 and 1,117.80

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Solution

The fourth proportional to 1,957.38, 2,700.96 and 1,117.80 is: 1,542.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,957.38 : 2,700.96 = 1,117.80 : x
  2. Step 2: Convert to fraction form
    1,957.38/2,700.96 = 1,117.80/x
  3. Step 3: Cross multiply
    1,957.38x = 2,700.96 × 1,117.80
  4. Step 4: Simplify right side
    1,957.38x = 3,019,133.09
  5. Step 5: Solve for x
    x = 3,019,133.09/1,957.38
  6. Step 6: Final answer
    x = 1,542.44

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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.