Home / 2,311.23-3,190.38-1,569.03

Finding the Fourth Proportional to 2,311.23, 3,190.38 and 1,569.03

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Solution

The fourth proportional to 2,311.23, 3,190.38 and 1,569.03 is: 2,165.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,311.23 : 3,190.38 = 1,569.03 : x
  2. Step 2: Convert to fraction form
    2,311.23/3,190.38 = 1,569.03/x
  3. Step 3: Cross multiply
    2,311.23x = 3,190.38 × 1,569.03
  4. Step 4: Simplify right side
    2,311.23x = 5,005,801.93
  5. Step 5: Solve for x
    x = 5,005,801.93/2,311.23
  6. Step 6: Final answer
    x = 2,165.86

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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.