Home / 1,563.44-2,155.92-1,284.08

Finding the Fourth Proportional to 1,563.44, 2,155.92 and 1,284.08

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Solution

The fourth proportional to 1,563.44, 2,155.92 and 1,284.08 is: 1,770.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,563.44 : 2,155.92 = 1,284.08 : x
  2. Step 2: Convert to fraction form
    1,563.44/2,155.92 = 1,284.08/x
  3. Step 3: Cross multiply
    1,563.44x = 2,155.92 × 1,284.08
  4. Step 4: Simplify right side
    1,563.44x = 2,768,373.75
  5. Step 5: Solve for x
    x = 2,768,373.75/1,563.44
  6. Step 6: Final answer
    x = 1,770.69

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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.