Home / 1,617.63-2,232.59-1,223.97

Finding the Fourth Proportional to 1,617.63, 2,232.59 and 1,223.97

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Solution

The fourth proportional to 1,617.63, 2,232.59 and 1,223.97 is: 1,689.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,617.63 : 2,232.59 = 1,223.97 : x
  2. Step 2: Convert to fraction form
    1,617.63/2,232.59 = 1,223.97/x
  3. Step 3: Cross multiply
    1,617.63x = 2,232.59 × 1,223.97
  4. Step 4: Simplify right side
    1,617.63x = 2,732,623.18
  5. Step 5: Solve for x
    x = 2,732,623.18/1,617.63
  6. Step 6: Final answer
    x = 1,689.28

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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.