Home / 1,939.93-2,677.11-1,055.74

Finding the Fourth Proportional to 1,939.93, 2,677.11 and 1,055.74

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Solution

The fourth proportional to 1,939.93, 2,677.11 and 1,055.74 is: 1,456.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.93 : 2,677.11 = 1,055.74 : x
  2. Step 2: Convert to fraction form
    1,939.93/2,677.11 = 1,055.74/x
  3. Step 3: Cross multiply
    1,939.93x = 2,677.11 × 1,055.74
  4. Step 4: Simplify right side
    1,939.93x = 2,826,332.42
  5. Step 5: Solve for x
    x = 2,826,332.42/1,939.93
  6. Step 6: Final answer
    x = 1,456.93

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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.