Home / 3,687.15-5,088.69-2,195.05

Finding the Fourth Proportional to 3,687.15, 5,088.69 and 2,195.05

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Solution

The fourth proportional to 3,687.15, 5,088.69 and 2,195.05 is: 3,029.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,687.15 : 5,088.69 = 2,195.05 : x
  2. Step 2: Convert to fraction form
    3,687.15/5,088.69 = 2,195.05/x
  3. Step 3: Cross multiply
    3,687.15x = 5,088.69 × 2,195.05
  4. Step 4: Simplify right side
    3,687.15x = 11,169,925.80
  5. Step 5: Solve for x
    x = 11,169,925.80/3,687.15
  6. Step 6: Final answer
    x = 3,029.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.