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Finding the Fourth Proportional to 2,285.77, 3,426.48 and 898.65

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Solution

The fourth proportional to 2,285.77, 3,426.48 and 898.65 is: 1,347.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,285.77 : 3,426.48 = 898.65 : x
  2. Step 2: Convert to fraction form
    2,285.77/3,426.48 = 898.65/x
  3. Step 3: Cross multiply
    2,285.77x = 3,426.48 × 898.65
  4. Step 4: Simplify right side
    2,285.77x = 3,079,206.25
  5. Step 5: Solve for x
    x = 3,079,206.25/2,285.77
  6. Step 6: Final answer
    x = 1,347.12

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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.