Home / 2,578.18-3,868.95-1,604.95

Finding the Fourth Proportional to 2,578.18, 3,868.95 and 1,604.95

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Solution

The fourth proportional to 2,578.18, 3,868.95 and 1,604.95 is: 2,408.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578.18 : 3,868.95 = 1,604.95 : x
  2. Step 2: Convert to fraction form
    2,578.18/3,868.95 = 1,604.95/x
  3. Step 3: Cross multiply
    2,578.18x = 3,868.95 × 1,604.95
  4. Step 4: Simplify right side
    2,578.18x = 6,209,471.30
  5. Step 5: Solve for x
    x = 6,209,471.30/2,578.18
  6. Step 6: Final answer
    x = 2,408.47

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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.