Home / 3,661.42-5,491.30-1,685.15

Finding the Fourth Proportional to 3,661.42, 5,491.30 and 1,685.15

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Solution

The fourth proportional to 3,661.42, 5,491.30 and 1,685.15 is: 2,527.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,661.42 : 5,491.30 = 1,685.15 : x
  2. Step 2: Convert to fraction form
    3,661.42/5,491.30 = 1,685.15/x
  3. Step 3: Cross multiply
    3,661.42x = 5,491.30 × 1,685.15
  4. Step 4: Simplify right side
    3,661.42x = 9,253,664.20
  5. Step 5: Solve for x
    x = 9,253,664.20/3,661.42
  6. Step 6: Final answer
    x = 2,527.35

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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.