Home / 3,587.96-5,381.54-1,247.56

Finding the Fourth Proportional to 3,587.96, 5,381.54 and 1,247.56

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Solution

The fourth proportional to 3,587.96, 5,381.54 and 1,247.56 is: 1,871.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,587.96 : 5,381.54 = 1,247.56 : x
  2. Step 2: Convert to fraction form
    3,587.96/5,381.54 = 1,247.56/x
  3. Step 3: Cross multiply
    3,587.96x = 5,381.54 × 1,247.56
  4. Step 4: Simplify right side
    3,587.96x = 6,713,794.04
  5. Step 5: Solve for x
    x = 6,713,794.04/3,587.96
  6. Step 6: Final answer
    x = 1,871.20

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1.5x scale

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.