Home / 4,778.48-7,169.16-1,491.92

Finding the Fourth Proportional to 4,778.48, 7,169.16 and 1,491.92

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Solution

The fourth proportional to 4,778.48, 7,169.16 and 1,491.92 is: 2,238.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,778.48 : 7,169.16 = 1,491.92 : x
  2. Step 2: Convert to fraction form
    4,778.48/7,169.16 = 1,491.92/x
  3. Step 3: Cross multiply
    4,778.48x = 7,169.16 × 1,491.92
  4. Step 4: Simplify right side
    4,778.48x = 10,695,813.19
  5. Step 5: Solve for x
    x = 10,695,813.19/4,778.48
  6. Step 6: Final answer
    x = 2,238.33

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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.