Home / 6,456.30-9,685.46-2,758.55

Finding the Fourth Proportional to 6,456.30, 9,685.46 and 2,758.55

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Solution

The fourth proportional to 6,456.30, 9,685.46 and 2,758.55 is: 4,138.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,456.30 : 9,685.46 = 2,758.55 : x
  2. Step 2: Convert to fraction form
    6,456.30/9,685.46 = 2,758.55/x
  3. Step 3: Cross multiply
    6,456.30x = 9,685.46 × 2,758.55
  4. Step 4: Simplify right side
    6,456.30x = 26,717,825.68
  5. Step 5: Solve for x
    x = 26,717,825.68/6,456.30
  6. Step 6: Final answer
    x = 4,138.26

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1.5x scale

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.