Home / 2,315.24-3,195.30-1,383.56

Finding the Fourth Proportional to 2,315.24, 3,195.30 and 1,383.56

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Solution

The fourth proportional to 2,315.24, 3,195.30 and 1,383.56 is: 1,909.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,315.24 : 3,195.30 = 1,383.56 : x
  2. Step 2: Convert to fraction form
    2,315.24/3,195.30 = 1,383.56/x
  3. Step 3: Cross multiply
    2,315.24x = 3,195.30 × 1,383.56
  4. Step 4: Simplify right side
    2,315.24x = 4,420,889.27
  5. Step 5: Solve for x
    x = 4,420,889.27/2,315.24
  6. Step 6: Final answer
    x = 1,909.47

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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.