Home / 6,456.78-9,685.85-2,073.20

Finding the Fourth Proportional to 6,456.78, 9,685.85 and 2,073.20

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Solution

The fourth proportional to 6,456.78, 9,685.85 and 2,073.20 is: 3,110.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,456.78 : 9,685.85 = 2,073.20 : x
  2. Step 2: Convert to fraction form
    6,456.78/9,685.85 = 2,073.20/x
  3. Step 3: Cross multiply
    6,456.78x = 9,685.85 × 2,073.20
  4. Step 4: Simplify right side
    6,456.78x = 20,080,645.42
  5. Step 5: Solve for x
    x = 20,080,645.42/6,456.78
  6. Step 6: Final answer
    x = 3,110.01

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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.