Home / 3,087.10-4,260.89-1,967.81

Finding the Fourth Proportional to 3,087.10, 4,260.89 and 1,967.81

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Solution

The fourth proportional to 3,087.10, 4,260.89 and 1,967.81 is: 2,716.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,087.10 : 4,260.89 = 1,967.81 : x
  2. Step 2: Convert to fraction form
    3,087.10/4,260.89 = 1,967.81/x
  3. Step 3: Cross multiply
    3,087.10x = 4,260.89 × 1,967.81
  4. Step 4: Simplify right side
    3,087.10x = 8,384,612.11
  5. Step 5: Solve for x
    x = 8,384,612.11/3,087.10
  6. Step 6: Final answer
    x = 2,716.02

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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.