Home / 5,712.20-8,568.30-5,274.80

Finding the Fourth Proportional to 5,712.20, 8,568.30 and 5,274.80

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Solution

The fourth proportional to 5,712.20, 8,568.30 and 5,274.80 is: 7,912.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,712.20 : 8,568.30 = 5,274.80 : x
  2. Step 2: Convert to fraction form
    5,712.20/8,568.30 = 5,274.80/x
  3. Step 3: Cross multiply
    5,712.20x = 8,568.30 × 5,274.80
  4. Step 4: Simplify right side
    5,712.20x = 45,196,068.84
  5. Step 5: Solve for x
    x = 45,196,068.84/5,712.20
  6. Step 6: Final answer
    x = 7,912.20

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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.