Home / 3,133.92-4,703.76-1,491.60

Finding the Fourth Proportional to 3,133.92, 4,703.76 and 1,491.60

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Solution

The fourth proportional to 3,133.92, 4,703.76 and 1,491.60 is: 2,238.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,133.92 : 4,703.76 = 1,491.60 : x
  2. Step 2: Convert to fraction form
    3,133.92/4,703.76 = 1,491.60/x
  3. Step 3: Cross multiply
    3,133.92x = 4,703.76 × 1,491.60
  4. Step 4: Simplify right side
    3,133.92x = 7,016,128.42
  5. Step 5: Solve for x
    x = 7,016,128.42/3,133.92
  6. Step 6: Final answer
    x = 2,238.77

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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.