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Finding the Fourth Proportional to 1,455.27, 2,008.26 and 887.94

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Solution

The fourth proportional to 1,455.27, 2,008.26 and 887.94 is: 1,225.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455.27 : 2,008.26 = 887.94 : x
  2. Step 2: Convert to fraction form
    1,455.27/2,008.26 = 887.94/x
  3. Step 3: Cross multiply
    1,455.27x = 2,008.26 × 887.94
  4. Step 4: Simplify right side
    1,455.27x = 1,783,214.38
  5. Step 5: Solve for x
    x = 1,783,214.38/1,455.27
  6. Step 6: Final answer
    x = 1,225.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.