Home / 1,231.38-1,846.09-614.77

Finding the Fourth Proportional to 1,231.38, 1,846.09 and 614.77

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Solution

The fourth proportional to 1,231.38, 1,846.09 and 614.77 is: 921.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231.38 : 1,846.09 = 614.77 : x
  2. Step 2: Convert to fraction form
    1,231.38/1,846.09 = 614.77/x
  3. Step 3: Cross multiply
    1,231.38x = 1,846.09 × 614.77
  4. Step 4: Simplify right side
    1,231.38x = 1,134,920.75
  5. Step 5: Solve for x
    x = 1,134,920.75/1,231.38
  6. Step 6: Final answer
    x = 921.67

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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.