Home / 9,161.55-13,741.58-2,921.31

Finding the Fourth Proportional to 9,161.55, 13,741.58 and 2,921.31

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Solution

The fourth proportional to 9,161.55, 13,741.58 and 2,921.31 is: 4,381.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,161.55 : 13,741.58 = 2,921.31 : x
  2. Step 2: Convert to fraction form
    9,161.55/13,741.58 = 2,921.31/x
  3. Step 3: Cross multiply
    9,161.55x = 13,741.58 × 2,921.31
  4. Step 4: Simplify right side
    9,161.55x = 40,143,400.46
  5. Step 5: Solve for x
    x = 40,143,400.46/9,161.55
  6. Step 6: Final answer
    x = 4,381.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.