Home / 6,731.74-9,290.93-3,898.63

Finding the Fourth Proportional to 6,731.74, 9,290.93 and 3,898.63

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Solution

The fourth proportional to 6,731.74, 9,290.93 and 3,898.63 is: 5,380.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,731.74 : 9,290.93 = 3,898.63 : x
  2. Step 2: Convert to fraction form
    6,731.74/9,290.93 = 3,898.63/x
  3. Step 3: Cross multiply
    6,731.74x = 9,290.93 × 3,898.63
  4. Step 4: Simplify right side
    6,731.74x = 36,221,898.43
  5. Step 5: Solve for x
    x = 36,221,898.43/6,731.74
  6. Step 6: Final answer
    x = 5,380.76

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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.