Home / 3,630.24-5,447.16-1,680.12

Finding the Fourth Proportional to 3,630.24, 5,447.16 and 1,680.12

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Solution

The fourth proportional to 3,630.24, 5,447.16 and 1,680.12 is: 2,521.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,630.24 : 5,447.16 = 1,680.12 : x
  2. Step 2: Convert to fraction form
    3,630.24/5,447.16 = 1,680.12/x
  3. Step 3: Cross multiply
    3,630.24x = 5,447.16 × 1,680.12
  4. Step 4: Simplify right side
    3,630.24x = 9,151,882.46
  5. Step 5: Solve for x
    x = 9,151,882.46/3,630.24
  6. Step 6: Final answer
    x = 2,521.01

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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.