Home / 1,563.66-2,159.94-1,272.47

Finding the Fourth Proportional to 1,563.66, 2,159.94 and 1,272.47

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Solution

The fourth proportional to 1,563.66, 2,159.94 and 1,272.47 is: 1,757.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,563.66 : 2,159.94 = 1,272.47 : x
  2. Step 2: Convert to fraction form
    1,563.66/2,159.94 = 1,272.47/x
  3. Step 3: Cross multiply
    1,563.66x = 2,159.94 × 1,272.47
  4. Step 4: Simplify right side
    1,563.66x = 2,748,448.05
  5. Step 5: Solve for x
    x = 2,748,448.05/1,563.66
  6. Step 6: Final answer
    x = 1,757.70

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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.