Home / 1,947.11-2,686.90-1,062.89

Finding the Fourth Proportional to 1,947.11, 2,686.90 and 1,062.89

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Solution

The fourth proportional to 1,947.11, 2,686.90 and 1,062.89 is: 1,466.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947.11 : 2,686.90 = 1,062.89 : x
  2. Step 2: Convert to fraction form
    1,947.11/2,686.90 = 1,062.89/x
  3. Step 3: Cross multiply
    1,947.11x = 2,686.90 × 1,062.89
  4. Step 4: Simplify right side
    1,947.11x = 2,855,879.14
  5. Step 5: Solve for x
    x = 2,855,879.14/1,947.11
  6. Step 6: Final answer
    x = 1,466.73

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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.