Home / 5,081.13-7,012.98-3,312.90

Finding the Fourth Proportional to 5,081.13, 7,012.98 and 3,312.90

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Solution

The fourth proportional to 5,081.13, 7,012.98 and 3,312.90 is: 4,572.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,081.13 : 7,012.98 = 3,312.90 : x
  2. Step 2: Convert to fraction form
    5,081.13/7,012.98 = 3,312.90/x
  3. Step 3: Cross multiply
    5,081.13x = 7,012.98 × 3,312.90
  4. Step 4: Simplify right side
    5,081.13x = 23,233,301.44
  5. Step 5: Solve for x
    x = 23,233,301.44/5,081.13
  6. Step 6: Final answer
    x = 4,572.47

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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.