Home / 5,126.87-7,690.29-2,351.70

Finding the Fourth Proportional to 5,126.87, 7,690.29 and 2,351.70

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Solution

The fourth proportional to 5,126.87, 7,690.29 and 2,351.70 is: 3,527.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,126.87 : 7,690.29 = 2,351.70 : x
  2. Step 2: Convert to fraction form
    5,126.87/7,690.29 = 2,351.70/x
  3. Step 3: Cross multiply
    5,126.87x = 7,690.29 × 2,351.70
  4. Step 4: Simplify right side
    5,126.87x = 18,085,254.99
  5. Step 5: Solve for x
    x = 18,085,254.99/5,126.87
  6. Step 6: Final answer
    x = 3,527.55

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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.