Home / 5,271.84-7,912.32-2,808.48

Finding the Fourth Proportional to 5,271.84, 7,912.32 and 2,808.48

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Solution

The fourth proportional to 5,271.84, 7,912.32 and 2,808.48 is: 4,215.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,271.84 : 7,912.32 = 2,808.48 : x
  2. Step 2: Convert to fraction form
    5,271.84/7,912.32 = 2,808.48/x
  3. Step 3: Cross multiply
    5,271.84x = 7,912.32 × 2,808.48
  4. Step 4: Simplify right side
    5,271.84x = 22,221,592.47
  5. Step 5: Solve for x
    x = 22,221,592.47/5,271.84
  6. Step 6: Final answer
    x = 4,215.15

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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.