Home / 2,686.93-4,030.07-1,702.78

Finding the Fourth Proportional to 2,686.93, 4,030.07 and 1,702.78

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Solution

The fourth proportional to 2,686.93, 4,030.07 and 1,702.78 is: 2,553.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686.93 : 4,030.07 = 1,702.78 : x
  2. Step 2: Convert to fraction form
    2,686.93/4,030.07 = 1,702.78/x
  3. Step 3: Cross multiply
    2,686.93x = 4,030.07 × 1,702.78
  4. Step 4: Simplify right side
    2,686.93x = 6,862,304.01
  5. Step 5: Solve for x
    x = 6,862,304.01/2,686.93
  6. Step 6: Final answer
    x = 2,553.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.