Home / 5,085.87-7,013.82-3,489.70

Finding the Fourth Proportional to 5,085.87, 7,013.82 and 3,489.70

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Solution

The fourth proportional to 5,085.87, 7,013.82 and 3,489.70 is: 4,812.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,085.87 : 7,013.82 = 3,489.70 : x
  2. Step 2: Convert to fraction form
    5,085.87/7,013.82 = 3,489.70/x
  3. Step 3: Cross multiply
    5,085.87x = 7,013.82 × 3,489.70
  4. Step 4: Simplify right side
    5,085.87x = 24,476,151.22
  5. Step 5: Solve for x
    x = 24,476,151.22/5,085.87
  6. Step 6: Final answer
    x = 4,812.58

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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.