Home / 2,105.04-3,169.80-1,561.08

Finding the Fourth Proportional to 2,105.04, 3,169.80 and 1,561.08

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Solution

The fourth proportional to 2,105.04, 3,169.80 and 1,561.08 is: 2,350.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,105.04 : 3,169.80 = 1,561.08 : x
  2. Step 2: Convert to fraction form
    2,105.04/3,169.80 = 1,561.08/x
  3. Step 3: Cross multiply
    2,105.04x = 3,169.80 × 1,561.08
  4. Step 4: Simplify right side
    2,105.04x = 4,948,311.38
  5. Step 5: Solve for x
    x = 4,948,311.38/2,105.04
  6. Step 6: Final answer
    x = 2,350.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.