Home / 1,812.85-2,697.56-1,806.71

Finding the Fourth Proportional to 1,812.85, 2,697.56 and 1,806.71

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Solution

The fourth proportional to 1,812.85, 2,697.56 and 1,806.71 is: 2,688.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,812.85 : 2,697.56 = 1,806.71 : x
  2. Step 2: Convert to fraction form
    1,812.85/2,697.56 = 1,806.71/x
  3. Step 3: Cross multiply
    1,812.85x = 2,697.56 × 1,806.71
  4. Step 4: Simplify right side
    1,812.85x = 4,873,703.04
  5. Step 5: Solve for x
    x = 4,873,703.04/1,812.85
  6. Step 6: Final answer
    x = 2,688.42

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.