Home / 2,786.59-4,181.51-1,143.10

Finding the Fourth Proportional to 2,786.59, 4,181.51 and 1,143.10

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Solution

The fourth proportional to 2,786.59, 4,181.51 and 1,143.10 is: 1,715.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786.59 : 4,181.51 = 1,143.10 : x
  2. Step 2: Convert to fraction form
    2,786.59/4,181.51 = 1,143.10/x
  3. Step 3: Cross multiply
    2,786.59x = 4,181.51 × 1,143.10
  4. Step 4: Simplify right side
    2,786.59x = 4,779,884.08
  5. Step 5: Solve for x
    x = 4,779,884.08/2,786.59
  6. Step 6: Final answer
    x = 1,715.32

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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.