Home / 2,463.20-3,686.70-1,912.40

Finding the Fourth Proportional to 2,463.20, 3,686.70 and 1,912.40

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Solution

The fourth proportional to 2,463.20, 3,686.70 and 1,912.40 is: 2,862.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,463.20 : 3,686.70 = 1,912.40 : x
  2. Step 2: Convert to fraction form
    2,463.20/3,686.70 = 1,912.40/x
  3. Step 3: Cross multiply
    2,463.20x = 3,686.70 × 1,912.40
  4. Step 4: Simplify right side
    2,463.20x = 7,050,445.08
  5. Step 5: Solve for x
    x = 7,050,445.08/2,463.20
  6. Step 6: Final answer
    x = 2,862.31

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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.