Home / 1,617.76-2,232.60-1,224.10

Finding the Fourth Proportional to 1,617.76, 2,232.60 and 1,224.10

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Solution

The fourth proportional to 1,617.76, 2,232.60 and 1,224.10 is: 1,689.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,617.76 : 2,232.60 = 1,224.10 : x
  2. Step 2: Convert to fraction form
    1,617.76/2,232.60 = 1,224.10/x
  3. Step 3: Cross multiply
    1,617.76x = 2,232.60 × 1,224.10
  4. Step 4: Simplify right side
    1,617.76x = 2,732,925.66
  5. Step 5: Solve for x
    x = 2,732,925.66/1,617.76
  6. Step 6: Final answer
    x = 1,689.33

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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.