Home / 5,109.33-7,658.55-2,913.33

Finding the Fourth Proportional to 5,109.33, 7,658.55 and 2,913.33

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Solution

The fourth proportional to 5,109.33, 7,658.55 and 2,913.33 is: 4,366.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,109.33 : 7,658.55 = 2,913.33 : x
  2. Step 2: Convert to fraction form
    5,109.33/7,658.55 = 2,913.33/x
  3. Step 3: Cross multiply
    5,109.33x = 7,658.55 × 2,913.33
  4. Step 4: Simplify right side
    5,109.33x = 22,311,883.47
  5. Step 5: Solve for x
    x = 22,311,883.47/5,109.33
  6. Step 6: Final answer
    x = 4,366.89

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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.