Home / 3,132.24-4,698.40-823.76

Finding the Fourth Proportional to 3,132.24, 4,698.40 and 823.76

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Solution

The fourth proportional to 3,132.24, 4,698.40 and 823.76 is: 1,235.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132.24 : 4,698.40 = 823.76 : x
  2. Step 2: Convert to fraction form
    3,132.24/4,698.40 = 823.76/x
  3. Step 3: Cross multiply
    3,132.24x = 4,698.40 × 823.76
  4. Step 4: Simplify right side
    3,132.24x = 3,870,353.98
  5. Step 5: Solve for x
    x = 3,870,353.98/3,132.24
  6. Step 6: Final answer
    x = 1,235.65

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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.