Home / 5,343.12-8,012.52-2,221.38

Finding the Fourth Proportional to 5,343.12, 8,012.52 and 2,221.38

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Solution

The fourth proportional to 5,343.12, 8,012.52 and 2,221.38 is: 3,331.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,343.12 : 8,012.52 = 2,221.38 : x
  2. Step 2: Convert to fraction form
    5,343.12/8,012.52 = 2,221.38/x
  3. Step 3: Cross multiply
    5,343.12x = 8,012.52 × 2,221.38
  4. Step 4: Simplify right side
    5,343.12x = 17,798,851.68
  5. Step 5: Solve for x
    x = 17,798,851.68/5,343.12
  6. Step 6: Final answer
    x = 3,331.17

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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.