Home / 3,687.12-5,527.44-1,378.08

Finding the Fourth Proportional to 3,687.12, 5,527.44 and 1,378.08

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Solution

The fourth proportional to 3,687.12, 5,527.44 and 1,378.08 is: 2,065.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,687.12 : 5,527.44 = 1,378.08 : x
  2. Step 2: Convert to fraction form
    3,687.12/5,527.44 = 1,378.08/x
  3. Step 3: Cross multiply
    3,687.12x = 5,527.44 × 1,378.08
  4. Step 4: Simplify right side
    3,687.12x = 7,617,254.52
  5. Step 5: Solve for x
    x = 7,617,254.52/3,687.12
  6. Step 6: Final answer
    x = 2,065.91

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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.