Home / 5,315.61-7,330.55-3,425.37

Finding the Fourth Proportional to 5,315.61, 7,330.55 and 3,425.37

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Solution

The fourth proportional to 5,315.61, 7,330.55 and 3,425.37 is: 4,723.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315.61 : 7,330.55 = 3,425.37 : x
  2. Step 2: Convert to fraction form
    5,315.61/7,330.55 = 3,425.37/x
  3. Step 3: Cross multiply
    5,315.61x = 7,330.55 × 3,425.37
  4. Step 4: Simplify right side
    5,315.61x = 25,109,828.93
  5. Step 5: Solve for x
    x = 25,109,828.93/5,315.61
  6. Step 6: Final answer
    x = 4,723.79

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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.