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Finding the Fourth Proportional to 2,805.96, 4,210.02 and 1,162.20

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Solution

The fourth proportional to 2,805.96, 4,210.02 and 1,162.20 is: 1,743.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,805.96 : 4,210.02 = 1,162.20 : x
  2. Step 2: Convert to fraction form
    2,805.96/4,210.02 = 1,162.20/x
  3. Step 3: Cross multiply
    2,805.96x = 4,210.02 × 1,162.20
  4. Step 4: Simplify right side
    2,805.96x = 4,892,885.24
  5. Step 5: Solve for x
    x = 4,892,885.24/2,805.96
  6. Step 6: Final answer
    x = 1,743.75

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1.5x scale

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.