Home / 2,487.62-3,433.08-1,440.28

Finding the Fourth Proportional to 2,487.62, 3,433.08 and 1,440.28

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Solution

The fourth proportional to 2,487.62, 3,433.08 and 1,440.28 is: 1,987.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,487.62 : 3,433.08 = 1,440.28 : x
  2. Step 2: Convert to fraction form
    2,487.62/3,433.08 = 1,440.28/x
  3. Step 3: Cross multiply
    2,487.62x = 3,433.08 × 1,440.28
  4. Step 4: Simplify right side
    2,487.62x = 4,944,596.46
  5. Step 5: Solve for x
    x = 4,944,596.46/2,487.62
  6. Step 6: Final answer
    x = 1,987.68

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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.