Home / 3,116.91-4,301.90-1,858.05

Finding the Fourth Proportional to 3,116.91, 4,301.90 and 1,858.05

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Solution

The fourth proportional to 3,116.91, 4,301.90 and 1,858.05 is: 2,564.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116.91 : 4,301.90 = 1,858.05 : x
  2. Step 2: Convert to fraction form
    3,116.91/4,301.90 = 1,858.05/x
  3. Step 3: Cross multiply
    3,116.91x = 4,301.90 × 1,858.05
  4. Step 4: Simplify right side
    3,116.91x = 7,993,137.33
  5. Step 5: Solve for x
    x = 7,993,137.33/3,116.91
  6. Step 6: Final answer
    x = 2,564.44

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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.