Home / 2,151.24-3,209.05-2,123.08

Finding the Fourth Proportional to 2,151.24, 3,209.05 and 2,123.08

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Solution

The fourth proportional to 2,151.24, 3,209.05 and 2,123.08 is: 3,167.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,151.24 : 3,209.05 = 2,123.08 : x
  2. Step 2: Convert to fraction form
    2,151.24/3,209.05 = 2,123.08/x
  3. Step 3: Cross multiply
    2,151.24x = 3,209.05 × 2,123.08
  4. Step 4: Simplify right side
    2,151.24x = 6,813,069.87
  5. Step 5: Solve for x
    x = 6,813,069.87/2,151.24
  6. Step 6: Final answer
    x = 3,167.04

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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.