Home / 2,140.26-3,212.22-2,124.06

Finding the Fourth Proportional to 2,140.26, 3,212.22 and 2,124.06

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Solution

The fourth proportional to 2,140.26, 3,212.22 and 2,124.06 is: 3,187.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140.26 : 3,212.22 = 2,124.06 : x
  2. Step 2: Convert to fraction form
    2,140.26/3,212.22 = 2,124.06/x
  3. Step 3: Cross multiply
    2,140.26x = 3,212.22 × 2,124.06
  4. Step 4: Simplify right side
    2,140.26x = 6,822,948.01
  5. Step 5: Solve for x
    x = 6,822,948.01/2,140.26
  6. Step 6: Final answer
    x = 3,187.91

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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.