Home / 2,420.61-3,340.50-1,372.66

Finding the Fourth Proportional to 2,420.61, 3,340.50 and 1,372.66

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Solution

The fourth proportional to 2,420.61, 3,340.50 and 1,372.66 is: 1,894.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.61 : 3,340.50 = 1,372.66 : x
  2. Step 2: Convert to fraction form
    2,420.61/3,340.50 = 1,372.66/x
  3. Step 3: Cross multiply
    2,420.61x = 3,340.50 × 1,372.66
  4. Step 4: Simplify right side
    2,420.61x = 4,585,370.73
  5. Step 5: Solve for x
    x = 4,585,370.73/2,420.61
  6. Step 6: Final answer
    x = 1,894.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.