Home / 2,625.30-3,938.70-1,585.62

Finding the Fourth Proportional to 2,625.30, 3,938.70 and 1,585.62

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Solution

The fourth proportional to 2,625.30, 3,938.70 and 1,585.62 is: 2,378.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,625.30 : 3,938.70 = 1,585.62 : x
  2. Step 2: Convert to fraction form
    2,625.30/3,938.70 = 1,585.62/x
  3. Step 3: Cross multiply
    2,625.30x = 3,938.70 × 1,585.62
  4. Step 4: Simplify right side
    2,625.30x = 6,245,281.49
  5. Step 5: Solve for x
    x = 6,245,281.49/2,625.30
  6. Step 6: Final answer
    x = 2,378.88

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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.