Home / 5,125.70-7,686.30-2,351.45

Finding the Fourth Proportional to 5,125.70, 7,686.30 and 2,351.45

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Solution

The fourth proportional to 5,125.70, 7,686.30 and 2,351.45 is: 3,526.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,125.70 : 7,686.30 = 2,351.45 : x
  2. Step 2: Convert to fraction form
    5,125.70/7,686.30 = 2,351.45/x
  3. Step 3: Cross multiply
    5,125.70x = 7,686.30 × 2,351.45
  4. Step 4: Simplify right side
    5,125.70x = 18,073,950.14
  5. Step 5: Solve for x
    x = 18,073,950.14/5,125.70
  6. Step 6: Final answer
    x = 3,526.14

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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.