Home / 3,087.77-4,630.49-1,112.87

Finding the Fourth Proportional to 3,087.77, 4,630.49 and 1,112.87

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Solution

The fourth proportional to 3,087.77, 4,630.49 and 1,112.87 is: 1,668.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,087.77 : 4,630.49 = 1,112.87 : x
  2. Step 2: Convert to fraction form
    3,087.77/4,630.49 = 1,112.87/x
  3. Step 3: Cross multiply
    3,087.77x = 4,630.49 × 1,112.87
  4. Step 4: Simplify right side
    3,087.77x = 5,153,110.25
  5. Step 5: Solve for x
    x = 5,153,110.25/3,087.77
  6. Step 6: Final answer
    x = 1,668.88

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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.