Home / 2,487.04-3,727.68-1,391.36

Finding the Fourth Proportional to 2,487.04, 3,727.68 and 1,391.36

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Solution

The fourth proportional to 2,487.04, 3,727.68 and 1,391.36 is: 2,085.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,487.04 : 3,727.68 = 1,391.36 : x
  2. Step 2: Convert to fraction form
    2,487.04/3,727.68 = 1,391.36/x
  3. Step 3: Cross multiply
    2,487.04x = 3,727.68 × 1,391.36
  4. Step 4: Simplify right side
    2,487.04x = 5,186,544.84
  5. Step 5: Solve for x
    x = 5,186,544.84/2,487.04
  6. Step 6: Final answer
    x = 2,085.43

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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.