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Finding the Fourth Proportional to 1,617.86, 2,232.27 and 1,174.99

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Solution

The fourth proportional to 1,617.86, 2,232.27 and 1,174.99 is: 1,621.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,617.86 : 2,232.27 = 1,174.99 : x
  2. Step 2: Convert to fraction form
    1,617.86/2,232.27 = 1,174.99/x
  3. Step 3: Cross multiply
    1,617.86x = 2,232.27 × 1,174.99
  4. Step 4: Simplify right side
    1,617.86x = 2,622,894.93
  5. Step 5: Solve for x
    x = 2,622,894.93/1,617.86
  6. Step 6: Final answer
    x = 1,621.21

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1.5x scale

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.