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Finding the Fourth Proportional to 2,803.92, 4,208.31 and 1,343.49

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Solution

The fourth proportional to 2,803.92, 4,208.31 and 1,343.49 is: 2,016.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,803.92 : 4,208.31 = 1,343.49 : x
  2. Step 2: Convert to fraction form
    2,803.92/4,208.31 = 1,343.49/x
  3. Step 3: Cross multiply
    2,803.92x = 4,208.31 × 1,343.49
  4. Step 4: Simplify right side
    2,803.92x = 5,653,822.40
  5. Step 5: Solve for x
    x = 5,653,822.40/2,803.92
  6. Step 6: Final answer
    x = 2,016.40

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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.