Home / 2,836.61-3,913.38-1,788.06

Finding the Fourth Proportional to 2,836.61, 3,913.38 and 1,788.06

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Solution

The fourth proportional to 2,836.61, 3,913.38 and 1,788.06 is: 2,466.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,836.61 : 3,913.38 = 1,788.06 : x
  2. Step 2: Convert to fraction form
    2,836.61/3,913.38 = 1,788.06/x
  3. Step 3: Cross multiply
    2,836.61x = 3,913.38 × 1,788.06
  4. Step 4: Simplify right side
    2,836.61x = 6,997,358.24
  5. Step 5: Solve for x
    x = 6,997,358.24/2,836.61
  6. Step 6: Final answer
    x = 2,466.80

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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.