Home / 2,690.51-4,039.87-2,231.24

Finding the Fourth Proportional to 2,690.51, 4,039.87 and 2,231.24

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Solution

The fourth proportional to 2,690.51, 4,039.87 and 2,231.24 is: 3,350.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690.51 : 4,039.87 = 2,231.24 : x
  2. Step 2: Convert to fraction form
    2,690.51/4,039.87 = 2,231.24/x
  3. Step 3: Cross multiply
    2,690.51x = 4,039.87 × 2,231.24
  4. Step 4: Simplify right side
    2,690.51x = 9,013,908.38
  5. Step 5: Solve for x
    x = 9,013,908.38/2,690.51
  6. Step 6: Final answer
    x = 3,350.26

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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.