Home / 5,125.58-7,687.99-1,377.05

Finding the Fourth Proportional to 5,125.58, 7,687.99 and 1,377.05

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Solution

The fourth proportional to 5,125.58, 7,687.99 and 1,377.05 is: 2,065.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,125.58 : 7,687.99 = 1,377.05 : x
  2. Step 2: Convert to fraction form
    5,125.58/7,687.99 = 1,377.05/x
  3. Step 3: Cross multiply
    5,125.58x = 7,687.99 × 1,377.05
  4. Step 4: Simplify right side
    5,125.58x = 10,586,739.74
  5. Step 5: Solve for x
    x = 10,586,739.74/5,125.58
  6. Step 6: Final answer
    x = 2,065.47

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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.