Home / 7,724.84-10,658.49-5,211.61

Finding the Fourth Proportional to 7,724.84, 10,658.49 and 5,211.61

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Solution

The fourth proportional to 7,724.84, 10,658.49 and 5,211.61 is: 7,190.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,724.84 : 10,658.49 = 5,211.61 : x
  2. Step 2: Convert to fraction form
    7,724.84/10,658.49 = 5,211.61/x
  3. Step 3: Cross multiply
    7,724.84x = 10,658.49 × 5,211.61
  4. Step 4: Simplify right side
    7,724.84x = 55,547,846.88
  5. Step 5: Solve for x
    x = 55,547,846.88/7,724.84
  6. Step 6: Final answer
    x = 7,190.81

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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.