Home / 1,815.87-2,505.93-1,029.96

Finding the Fourth Proportional to 1,815.87, 2,505.93 and 1,029.96

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Solution

The fourth proportional to 1,815.87, 2,505.93 and 1,029.96 is: 1,421.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815.87 : 2,505.93 = 1,029.96 : x
  2. Step 2: Convert to fraction form
    1,815.87/2,505.93 = 1,029.96/x
  3. Step 3: Cross multiply
    1,815.87x = 2,505.93 × 1,029.96
  4. Step 4: Simplify right side
    1,815.87x = 2,581,007.66
  5. Step 5: Solve for x
    x = 2,581,007.66/1,815.87
  6. Step 6: Final answer
    x = 1,421.36

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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.