Home / 3,103.57-4,282.63-2,515.51

Finding the Fourth Proportional to 3,103.57, 4,282.63 and 2,515.51

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Solution

The fourth proportional to 3,103.57, 4,282.63 and 2,515.51 is: 3,471.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,103.57 : 4,282.63 = 2,515.51 : x
  2. Step 2: Convert to fraction form
    3,103.57/4,282.63 = 2,515.51/x
  3. Step 3: Cross multiply
    3,103.57x = 4,282.63 × 2,515.51
  4. Step 4: Simplify right side
    3,103.57x = 10,772,998.59
  5. Step 5: Solve for x
    x = 10,772,998.59/3,103.57
  6. Step 6: Final answer
    x = 3,471.16

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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.