Home / 6,851.76-9,455.40-3,867.56

Finding the Fourth Proportional to 6,851.76, 9,455.40 and 3,867.56

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Solution

The fourth proportional to 6,851.76, 9,455.40 and 3,867.56 is: 5,337.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,851.76 : 9,455.40 = 3,867.56 : x
  2. Step 2: Convert to fraction form
    6,851.76/9,455.40 = 3,867.56/x
  3. Step 3: Cross multiply
    6,851.76x = 9,455.40 × 3,867.56
  4. Step 4: Simplify right side
    6,851.76x = 36,569,326.82
  5. Step 5: Solve for x
    x = 36,569,326.82/6,851.76
  6. Step 6: Final answer
    x = 5,337.22

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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.