Home / 4,360.40-6,540.60-2,805.20

Finding the Fourth Proportional to 4,360.40, 6,540.60 and 2,805.20

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Solution

The fourth proportional to 4,360.40, 6,540.60 and 2,805.20 is: 4,207.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,360.40 : 6,540.60 = 2,805.20 : x
  2. Step 2: Convert to fraction form
    4,360.40/6,540.60 = 2,805.20/x
  3. Step 3: Cross multiply
    4,360.40x = 6,540.60 × 2,805.20
  4. Step 4: Simplify right side
    4,360.40x = 18,347,691.12
  5. Step 5: Solve for x
    x = 18,347,691.12/4,360.40
  6. Step 6: Final answer
    x = 4,207.80

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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.