Home / 1,650.11-2,475.81-1,213.56

Finding the Fourth Proportional to 1,650.11, 2,475.81 and 1,213.56

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Solution

The fourth proportional to 1,650.11, 2,475.81 and 1,213.56 is: 1,820.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,650.11 : 2,475.81 = 1,213.56 : x
  2. Step 2: Convert to fraction form
    1,650.11/2,475.81 = 1,213.56/x
  3. Step 3: Cross multiply
    1,650.11x = 2,475.81 × 1,213.56
  4. Step 4: Simplify right side
    1,650.11x = 3,004,543.98
  5. Step 5: Solve for x
    x = 3,004,543.98/1,650.11
  6. Step 6: Final answer
    x = 1,820.82

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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.