Home / 3,079.05-4,618.67-887.91

Finding the Fourth Proportional to 3,079.05, 4,618.67 and 887.91

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Solution

The fourth proportional to 3,079.05, 4,618.67 and 887.91 is: 1,331.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,079.05 : 4,618.67 = 887.91 : x
  2. Step 2: Convert to fraction form
    3,079.05/4,618.67 = 887.91/x
  3. Step 3: Cross multiply
    3,079.05x = 4,618.67 × 887.91
  4. Step 4: Simplify right side
    3,079.05x = 4,100,958.84
  5. Step 5: Solve for x
    x = 4,100,958.84/3,079.05
  6. Step 6: Final answer
    x = 1,331.89

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1.5x scale

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.