Home / 2,173.48-3,242.57-1,861.72

Finding the Fourth Proportional to 2,173.48, 3,242.57 and 1,861.72

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Solution

The fourth proportional to 2,173.48, 3,242.57 and 1,861.72 is: 2,777.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,173.48 : 3,242.57 = 1,861.72 : x
  2. Step 2: Convert to fraction form
    2,173.48/3,242.57 = 1,861.72/x
  3. Step 3: Cross multiply
    2,173.48x = 3,242.57 × 1,861.72
  4. Step 4: Simplify right side
    2,173.48x = 6,036,757.42
  5. Step 5: Solve for x
    x = 6,036,757.42/2,173.48
  6. Step 6: Final answer
    x = 2,777.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.