Home / 2,845.72-3,927.18-1,711.72

Finding the Fourth Proportional to 2,845.72, 3,927.18 and 1,711.72

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Solution

The fourth proportional to 2,845.72, 3,927.18 and 1,711.72 is: 2,362.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,845.72 : 3,927.18 = 1,711.72 : x
  2. Step 2: Convert to fraction form
    2,845.72/3,927.18 = 1,711.72/x
  3. Step 3: Cross multiply
    2,845.72x = 3,927.18 × 1,711.72
  4. Step 4: Simplify right side
    2,845.72x = 6,722,232.55
  5. Step 5: Solve for x
    x = 6,722,232.55/2,845.72
  6. Step 6: Final answer
    x = 2,362.23

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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.