Home / 1,815.81-2,720.40-1,034.83

Finding the Fourth Proportional to 1,815.81, 2,720.40 and 1,034.83

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Solution

The fourth proportional to 1,815.81, 2,720.40 and 1,034.83 is: 1,550.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815.81 : 2,720.40 = 1,034.83 : x
  2. Step 2: Convert to fraction form
    1,815.81/2,720.40 = 1,034.83/x
  3. Step 3: Cross multiply
    1,815.81x = 2,720.40 × 1,034.83
  4. Step 4: Simplify right side
    1,815.81x = 2,815,151.53
  5. Step 5: Solve for x
    x = 2,815,151.53/1,815.81
  6. Step 6: Final answer
    x = 1,550.36

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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.