Home / 1,812.70-2,719.05-496.45

Finding the Fourth Proportional to 1,812.70, 2,719.05 and 496.45

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Solution

The fourth proportional to 1,812.70, 2,719.05 and 496.45 is: 744.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,812.70 : 2,719.05 = 496.45 : x
  2. Step 2: Convert to fraction form
    1,812.70/2,719.05 = 496.45/x
  3. Step 3: Cross multiply
    1,812.70x = 2,719.05 × 496.45
  4. Step 4: Simplify right side
    1,812.70x = 1,349,872.37
  5. Step 5: Solve for x
    x = 1,349,872.37/1,812.70
  6. Step 6: Final answer
    x = 744.68

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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.