Home / 3,752.32-5,628.48-1,155.20

Finding the Fourth Proportional to 3,752.32, 5,628.48 and 1,155.20

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Solution

The fourth proportional to 3,752.32, 5,628.48 and 1,155.20 is: 1,732.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,752.32 : 5,628.48 = 1,155.20 : x
  2. Step 2: Convert to fraction form
    3,752.32/5,628.48 = 1,155.20/x
  3. Step 3: Cross multiply
    3,752.32x = 5,628.48 × 1,155.20
  4. Step 4: Simplify right side
    3,752.32x = 6,502,020.10
  5. Step 5: Solve for x
    x = 6,502,020.10/3,752.32
  6. Step 6: Final answer
    x = 1,732.80

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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.