Home / 2,111.39-3,167.09-2,007.71

Finding the Fourth Proportional to 2,111.39, 3,167.09 and 2,007.71

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Solution

The fourth proportional to 2,111.39, 3,167.09 and 2,007.71 is: 3,011.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,111.39 : 3,167.09 = 2,007.71 : x
  2. Step 2: Convert to fraction form
    2,111.39/3,167.09 = 2,007.71/x
  3. Step 3: Cross multiply
    2,111.39x = 3,167.09 × 2,007.71
  4. Step 4: Simplify right side
    2,111.39x = 6,358,598.26
  5. Step 5: Solve for x
    x = 6,358,598.26/2,111.39
  6. Step 6: Final answer
    x = 3,011.57

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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.