Home / 1,563.56-2,157.86-1,067.40

Finding the Fourth Proportional to 1,563.56, 2,157.86 and 1,067.40

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Solution

The fourth proportional to 1,563.56, 2,157.86 and 1,067.40 is: 1,473.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,563.56 : 2,157.86 = 1,067.40 : x
  2. Step 2: Convert to fraction form
    1,563.56/2,157.86 = 1,067.40/x
  3. Step 3: Cross multiply
    1,563.56x = 2,157.86 × 1,067.40
  4. Step 4: Simplify right side
    1,563.56x = 2,303,299.76
  5. Step 5: Solve for x
    x = 2,303,299.76/1,563.56
  6. Step 6: Final answer
    x = 1,473.11

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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.