Home / 4,207.40-6,311.10-2,748.20

Finding the Fourth Proportional to 4,207.40, 6,311.10 and 2,748.20

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Solution

The fourth proportional to 4,207.40, 6,311.10 and 2,748.20 is: 4,122.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,207.40 : 6,311.10 = 2,748.20 : x
  2. Step 2: Convert to fraction form
    4,207.40/6,311.10 = 2,748.20/x
  3. Step 3: Cross multiply
    4,207.40x = 6,311.10 × 2,748.20
  4. Step 4: Simplify right side
    4,207.40x = 17,344,165.02
  5. Step 5: Solve for x
    x = 17,344,165.02/4,207.40
  6. Step 6: Final answer
    x = 4,122.30

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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.