Home / 3,316.97-4,575.87-1,988.36

Finding the Fourth Proportional to 3,316.97, 4,575.87 and 1,988.36

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Solution

The fourth proportional to 3,316.97, 4,575.87 and 1,988.36 is: 2,743.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,316.97 : 4,575.87 = 1,988.36 : x
  2. Step 2: Convert to fraction form
    3,316.97/4,575.87 = 1,988.36/x
  3. Step 3: Cross multiply
    3,316.97x = 4,575.87 × 1,988.36
  4. Step 4: Simplify right side
    3,316.97x = 9,098,453.99
  5. Step 5: Solve for x
    x = 9,098,453.99/3,316.97
  6. Step 6: Final answer
    x = 2,743.01

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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.