Home / 4,948.20-7,423.68-2,758.48

Finding the Fourth Proportional to 4,948.20, 7,423.68 and 2,758.48

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Solution

The fourth proportional to 4,948.20, 7,423.68 and 2,758.48 is: 4,138.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,948.20 : 7,423.68 = 2,758.48 : x
  2. Step 2: Convert to fraction form
    4,948.20/7,423.68 = 2,758.48/x
  3. Step 3: Cross multiply
    4,948.20x = 7,423.68 × 2,758.48
  4. Step 4: Simplify right side
    4,948.20x = 20,478,072.81
  5. Step 5: Solve for x
    x = 20,478,072.81/4,948.20
  6. Step 6: Final answer
    x = 4,138.49

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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.