Home / 2,748.30-4,127.40-2,408.10

Finding the Fourth Proportional to 2,748.30, 4,127.40 and 2,408.10

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Solution

The fourth proportional to 2,748.30, 4,127.40 and 2,408.10 is: 3,616.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,748.30 : 4,127.40 = 2,408.10 : x
  2. Step 2: Convert to fraction form
    2,748.30/4,127.40 = 2,408.10/x
  3. Step 3: Cross multiply
    2,748.30x = 4,127.40 × 2,408.10
  4. Step 4: Simplify right side
    2,748.30x = 9,939,191.94
  5. Step 5: Solve for x
    x = 9,939,191.94/2,748.30
  6. Step 6: Final answer
    x = 3,616.49

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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.