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Finding the Fourth Proportional to 1,094.15, 1,640.01 and 877.27

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Solution

The fourth proportional to 1,094.15, 1,640.01 and 877.27 is: 1,314.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,094.15 : 1,640.01 = 877.27 : x
  2. Step 2: Convert to fraction form
    1,094.15/1,640.01 = 877.27/x
  3. Step 3: Cross multiply
    1,094.15x = 1,640.01 × 877.27
  4. Step 4: Simplify right side
    1,094.15x = 1,438,731.57
  5. Step 5: Solve for x
    x = 1,438,731.57/1,094.15
  6. Step 6: Final answer
    x = 1,314.93

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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.