Home / 4,767.40-7,151.10-3,212.20

Finding the Fourth Proportional to 4,767.40, 7,151.10 and 3,212.20

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Solution

The fourth proportional to 4,767.40, 7,151.10 and 3,212.20 is: 4,818.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,767.40 : 7,151.10 = 3,212.20 : x
  2. Step 2: Convert to fraction form
    4,767.40/7,151.10 = 3,212.20/x
  3. Step 3: Cross multiply
    4,767.40x = 7,151.10 × 3,212.20
  4. Step 4: Simplify right side
    4,767.40x = 22,970,763.42
  5. Step 5: Solve for x
    x = 22,970,763.42/4,767.40
  6. Step 6: Final answer
    x = 4,818.30

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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.