Home / 2,487.59-3,433.03-1,439.65

Finding the Fourth Proportional to 2,487.59, 3,433.03 and 1,439.65

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Solution

The fourth proportional to 2,487.59, 3,433.03 and 1,439.65 is: 1,986.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,487.59 : 3,433.03 = 1,439.65 : x
  2. Step 2: Convert to fraction form
    2,487.59/3,433.03 = 1,439.65/x
  3. Step 3: Cross multiply
    2,487.59x = 3,433.03 × 1,439.65
  4. Step 4: Simplify right side
    2,487.59x = 4,942,360.77
  5. Step 5: Solve for x
    x = 4,942,360.77/2,487.59
  6. Step 6: Final answer
    x = 1,986.81

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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.