Home / 6,686.78-9,228.27-3,702.89

Finding the Fourth Proportional to 6,686.78, 9,228.27 and 3,702.89

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Solution

The fourth proportional to 6,686.78, 9,228.27 and 3,702.89 is: 5,110.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,686.78 : 9,228.27 = 3,702.89 : x
  2. Step 2: Convert to fraction form
    6,686.78/9,228.27 = 3,702.89/x
  3. Step 3: Cross multiply
    6,686.78x = 9,228.27 × 3,702.89
  4. Step 4: Simplify right side
    6,686.78x = 34,171,204.04
  5. Step 5: Solve for x
    x = 34,171,204.04/6,686.78
  6. Step 6: Final answer
    x = 5,110.27

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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.