Home / 5,276.84-7,911.35-3,196.45

Finding the Fourth Proportional to 5,276.84, 7,911.35 and 3,196.45

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Solution

The fourth proportional to 5,276.84, 7,911.35 and 3,196.45 is: 4,792.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,276.84 : 7,911.35 = 3,196.45 : x
  2. Step 2: Convert to fraction form
    5,276.84/7,911.35 = 3,196.45/x
  3. Step 3: Cross multiply
    5,276.84x = 7,911.35 × 3,196.45
  4. Step 4: Simplify right side
    5,276.84x = 25,288,187.11
  5. Step 5: Solve for x
    x = 25,288,187.11/5,276.84
  6. Step 6: Final answer
    x = 4,792.30

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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.