Home / 2,888.11-3,987.24-1,993.15

Finding the Fourth Proportional to 2,888.11, 3,987.24 and 1,993.15

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Solution

The fourth proportional to 2,888.11, 3,987.24 and 1,993.15 is: 2,751.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,888.11 : 3,987.24 = 1,993.15 : x
  2. Step 2: Convert to fraction form
    2,888.11/3,987.24 = 1,993.15/x
  3. Step 3: Cross multiply
    2,888.11x = 3,987.24 × 1,993.15
  4. Step 4: Simplify right side
    2,888.11x = 7,947,167.41
  5. Step 5: Solve for x
    x = 7,947,167.41/2,888.11
  6. Step 6: Final answer
    x = 2,751.68

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.