Home / 5,315.96-7,975.24-2,238.20

Finding the Fourth Proportional to 5,315.96, 7,975.24 and 2,238.20

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Solution

The fourth proportional to 5,315.96, 7,975.24 and 2,238.20 is: 3,357.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315.96 : 7,975.24 = 2,238.20 : x
  2. Step 2: Convert to fraction form
    5,315.96/7,975.24 = 2,238.20/x
  3. Step 3: Cross multiply
    5,315.96x = 7,975.24 × 2,238.20
  4. Step 4: Simplify right side
    5,315.96x = 17,850,182.17
  5. Step 5: Solve for x
    x = 17,850,182.17/5,315.96
  6. Step 6: Final answer
    x = 3,357.85

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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.