Home / 1,563.43-2,157.92-934.34

Finding the Fourth Proportional to 1,563.43, 2,157.92 and 934.34

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Solution

The fourth proportional to 1,563.43, 2,157.92 and 934.34 is: 1,289.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,563.43 : 2,157.92 = 934.34 : x
  2. Step 2: Convert to fraction form
    1,563.43/2,157.92 = 934.34/x
  3. Step 3: Cross multiply
    1,563.43x = 2,157.92 × 934.34
  4. Step 4: Simplify right side
    1,563.43x = 2,016,224.27
  5. Step 5: Solve for x
    x = 2,016,224.27/1,563.43
  6. Step 6: Final answer
    x = 1,289.61

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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.