Home / 1,755.36-2,643.46-1,563.12

Finding the Fourth Proportional to 1,755.36, 2,643.46 and 1,563.12

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Solution

The fourth proportional to 1,755.36, 2,643.46 and 1,563.12 is: 2,353.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,755.36 : 2,643.46 = 1,563.12 : x
  2. Step 2: Convert to fraction form
    1,755.36/2,643.46 = 1,563.12/x
  3. Step 3: Cross multiply
    1,755.36x = 2,643.46 × 1,563.12
  4. Step 4: Simplify right side
    1,755.36x = 4,132,037.38
  5. Step 5: Solve for x
    x = 4,132,037.38/1,755.36
  6. Step 6: Final answer
    x = 2,353.95

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.