Home / 5,769.20-8,649.36-3,915.44

Finding the Fourth Proportional to 5,769.20, 8,649.36 and 3,915.44

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Solution

The fourth proportional to 5,769.20, 8,649.36 and 3,915.44 is: 5,870.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,769.20 : 8,649.36 = 3,915.44 : x
  2. Step 2: Convert to fraction form
    5,769.20/8,649.36 = 3,915.44/x
  3. Step 3: Cross multiply
    5,769.20x = 8,649.36 × 3,915.44
  4. Step 4: Simplify right side
    5,769.20x = 33,866,050.12
  5. Step 5: Solve for x
    x = 33,866,050.12/5,769.20
  6. Step 6: Final answer
    x = 5,870.15

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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.