Home / 3,155.32-4,732.96-1,206.72

Finding the Fourth Proportional to 3,155.32, 4,732.96 and 1,206.72

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Solution

The fourth proportional to 3,155.32, 4,732.96 and 1,206.72 is: 1,810.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.32 : 4,732.96 = 1,206.72 : x
  2. Step 2: Convert to fraction form
    3,155.32/4,732.96 = 1,206.72/x
  3. Step 3: Cross multiply
    3,155.32x = 4,732.96 × 1,206.72
  4. Step 4: Simplify right side
    3,155.32x = 5,711,357.49
  5. Step 5: Solve for x
    x = 5,711,357.49/3,155.32
  6. Step 6: Final answer
    x = 1,810.07

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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.