Home / 3,619.06-5,428.65-1,155.95

Finding the Fourth Proportional to 3,619.06, 5,428.65 and 1,155.95

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Solution

The fourth proportional to 3,619.06, 5,428.65 and 1,155.95 is: 1,733.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.06 : 5,428.65 = 1,155.95 : x
  2. Step 2: Convert to fraction form
    3,619.06/5,428.65 = 1,155.95/x
  3. Step 3: Cross multiply
    3,619.06x = 5,428.65 × 1,155.95
  4. Step 4: Simplify right side
    3,619.06x = 6,275,242.19
  5. Step 5: Solve for x
    x = 6,275,242.19/3,619.06
  6. Step 6: Final answer
    x = 1,733.94

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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.