Home / 6,639.74-9,162.45-3,806.51

Finding the Fourth Proportional to 6,639.74, 9,162.45 and 3,806.51

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Solution

The fourth proportional to 6,639.74, 9,162.45 and 3,806.51 is: 5,252.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,639.74 : 9,162.45 = 3,806.51 : x
  2. Step 2: Convert to fraction form
    6,639.74/9,162.45 = 3,806.51/x
  3. Step 3: Cross multiply
    6,639.74x = 9,162.45 × 3,806.51
  4. Step 4: Simplify right side
    6,639.74x = 34,876,957.55
  5. Step 5: Solve for x
    x = 34,876,957.55/6,639.74
  6. Step 6: Final answer
    x = 5,252.76

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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.