Home / 2,478.96-3,420.99-1,359.93

Finding the Fourth Proportional to 2,478.96, 3,420.99 and 1,359.93

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Solution

The fourth proportional to 2,478.96, 3,420.99 and 1,359.93 is: 1,876.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,478.96 : 3,420.99 = 1,359.93 : x
  2. Step 2: Convert to fraction form
    2,478.96/3,420.99 = 1,359.93/x
  3. Step 3: Cross multiply
    2,478.96x = 3,420.99 × 1,359.93
  4. Step 4: Simplify right side
    2,478.96x = 4,652,306.93
  5. Step 5: Solve for x
    x = 4,652,306.93/2,478.96
  6. Step 6: Final answer
    x = 1,876.72

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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.