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Finding the Fourth Proportional to 2,298.11, 3,445.81 and 910.31

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Solution

The fourth proportional to 2,298.11, 3,445.81 and 910.31 is: 1,364.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,298.11 : 3,445.81 = 910.31 : x
  2. Step 2: Convert to fraction form
    2,298.11/3,445.81 = 910.31/x
  3. Step 3: Cross multiply
    2,298.11x = 3,445.81 × 910.31
  4. Step 4: Simplify right side
    2,298.11x = 3,136,735.80
  5. Step 5: Solve for x
    x = 3,136,735.80/2,298.11
  6. Step 6: Final answer
    x = 1,364.92

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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.