Home / 5,151.84-7,727.40-2,958.72

Finding the Fourth Proportional to 5,151.84, 7,727.40 and 2,958.72

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Solution

The fourth proportional to 5,151.84, 7,727.40 and 2,958.72 is: 4,437.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,151.84 : 7,727.40 = 2,958.72 : x
  2. Step 2: Convert to fraction form
    5,151.84/7,727.40 = 2,958.72/x
  3. Step 3: Cross multiply
    5,151.84x = 7,727.40 × 2,958.72
  4. Step 4: Simplify right side
    5,151.84x = 22,863,212.93
  5. Step 5: Solve for x
    x = 22,863,212.93/5,151.84
  6. Step 6: Final answer
    x = 4,437.87

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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.