Home / 1,815.08-2,504.78-1,029.12

Finding the Fourth Proportional to 1,815.08, 2,504.78 and 1,029.12

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Solution

The fourth proportional to 1,815.08, 2,504.78 and 1,029.12 is: 1,420.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815.08 : 2,504.78 = 1,029.12 : x
  2. Step 2: Convert to fraction form
    1,815.08/2,504.78 = 1,029.12/x
  3. Step 3: Cross multiply
    1,815.08x = 2,504.78 × 1,029.12
  4. Step 4: Simplify right side
    1,815.08x = 2,577,719.19
  5. Step 5: Solve for x
    x = 2,577,719.19/1,815.08
  6. Step 6: Final answer
    x = 1,420.17

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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.