Home / 2,155.24-3,231.03-2,053.18

Finding the Fourth Proportional to 2,155.24, 3,231.03 and 2,053.18

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Solution

The fourth proportional to 2,155.24, 3,231.03 and 2,053.18 is: 3,078.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155.24 : 3,231.03 = 2,053.18 : x
  2. Step 2: Convert to fraction form
    2,155.24/3,231.03 = 2,053.18/x
  3. Step 3: Cross multiply
    2,155.24x = 3,231.03 × 2,053.18
  4. Step 4: Simplify right side
    2,155.24x = 6,633,886.18
  5. Step 5: Solve for x
    x = 6,633,886.18/2,155.24
  6. Step 6: Final answer
    x = 3,078.03

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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.