Home / 2,836.30-4,246.05-2,109.10

Finding the Fourth Proportional to 2,836.30, 4,246.05 and 2,109.10

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Solution

The fourth proportional to 2,836.30, 4,246.05 and 2,109.10 is: 3,157.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,836.30 : 4,246.05 = 2,109.10 : x
  2. Step 2: Convert to fraction form
    2,836.30/4,246.05 = 2,109.10/x
  3. Step 3: Cross multiply
    2,836.30x = 4,246.05 × 2,109.10
  4. Step 4: Simplify right side
    2,836.30x = 8,955,344.06
  5. Step 5: Solve for x
    x = 8,955,344.06/2,836.30
  6. Step 6: Final answer
    x = 3,157.40

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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.