Home / 5,176.84-7,144.02-2,818.96

Finding the Fourth Proportional to 5,176.84, 7,144.02 and 2,818.96

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Solution

The fourth proportional to 5,176.84, 7,144.02 and 2,818.96 is: 3,890.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,176.84 : 7,144.02 = 2,818.96 : x
  2. Step 2: Convert to fraction form
    5,176.84/7,144.02 = 2,818.96/x
  3. Step 3: Cross multiply
    5,176.84x = 7,144.02 × 2,818.96
  4. Step 4: Simplify right side
    5,176.84x = 20,138,706.62
  5. Step 5: Solve for x
    x = 20,138,706.62/5,176.84
  6. Step 6: Final answer
    x = 3,890.15

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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.