Home / 5,161.62-7,123.00-2,803.74

Finding the Fourth Proportional to 5,161.62, 7,123.00 and 2,803.74

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Solution

The fourth proportional to 5,161.62, 7,123.00 and 2,803.74 is: 3,869.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,161.62 : 7,123.00 = 2,803.74 : x
  2. Step 2: Convert to fraction form
    5,161.62/7,123.00 = 2,803.74/x
  3. Step 3: Cross multiply
    5,161.62x = 7,123.00 × 2,803.74
  4. Step 4: Simplify right side
    5,161.62x = 19,970,997.40
  5. Step 5: Solve for x
    x = 19,970,997.40/5,161.62
  6. Step 6: Final answer
    x = 3,869.14

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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.