Home / 1,563.38-2,157.64-1,169.72

Finding the Fourth Proportional to 1,563.38, 2,157.64 and 1,169.72

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Solution

The fourth proportional to 1,563.38, 2,157.64 and 1,169.72 is: 1,614.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,563.38 : 2,157.64 = 1,169.72 : x
  2. Step 2: Convert to fraction form
    1,563.38/2,157.64 = 1,169.72/x
  3. Step 3: Cross multiply
    1,563.38x = 2,157.64 × 1,169.72
  4. Step 4: Simplify right side
    1,563.38x = 2,523,834.66
  5. Step 5: Solve for x
    x = 2,523,834.66/1,563.38
  6. Step 6: Final answer
    x = 1,614.34

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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.