Home / 5,080.39-7,012.88-3,312.43

Finding the Fourth Proportional to 5,080.39, 7,012.88 and 3,312.43

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Solution

The fourth proportional to 5,080.39, 7,012.88 and 3,312.43 is: 4,572.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,080.39 : 7,012.88 = 3,312.43 : x
  2. Step 2: Convert to fraction form
    5,080.39/7,012.88 = 3,312.43/x
  3. Step 3: Cross multiply
    5,080.39x = 7,012.88 × 3,312.43
  4. Step 4: Simplify right side
    5,080.39x = 23,229,674.10
  5. Step 5: Solve for x
    x = 23,229,674.10/5,080.39
  6. Step 6: Final answer
    x = 4,572.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.