Home / 2,125.68-3,169.92-2,106.24

Finding the Fourth Proportional to 2,125.68, 3,169.92 and 2,106.24

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Solution

The fourth proportional to 2,125.68, 3,169.92 and 2,106.24 is: 3,140.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125.68 : 3,169.92 = 2,106.24 : x
  2. Step 2: Convert to fraction form
    2,125.68/3,169.92 = 2,106.24/x
  3. Step 3: Cross multiply
    2,125.68x = 3,169.92 × 2,106.24
  4. Step 4: Simplify right side
    2,125.68x = 6,676,612.30
  5. Step 5: Solve for x
    x = 6,676,612.30/2,125.68
  6. Step 6: Final answer
    x = 3,140.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.