Home / 6,480.76-9,722.40-2,585.20

Finding the Fourth Proportional to 6,480.76, 9,722.40 and 2,585.20

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Solution

The fourth proportional to 6,480.76, 9,722.40 and 2,585.20 is: 3,878.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,480.76 : 9,722.40 = 2,585.20 : x
  2. Step 2: Convert to fraction form
    6,480.76/9,722.40 = 2,585.20/x
  3. Step 3: Cross multiply
    6,480.76x = 9,722.40 × 2,585.20
  4. Step 4: Simplify right side
    6,480.76x = 25,134,348.48
  5. Step 5: Solve for x
    x = 25,134,348.48/6,480.76
  6. Step 6: Final answer
    x = 3,878.30

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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.