Home / 6,938.79-9,574.88-3,954.56

Finding the Fourth Proportional to 6,938.79, 9,574.88 and 3,954.56

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Solution

The fourth proportional to 6,938.79, 9,574.88 and 3,954.56 is: 5,456.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,938.79 : 9,574.88 = 3,954.56 : x
  2. Step 2: Convert to fraction form
    6,938.79/9,574.88 = 3,954.56/x
  3. Step 3: Cross multiply
    6,938.79x = 9,574.88 × 3,954.56
  4. Step 4: Simplify right side
    6,938.79x = 37,864,369.81
  5. Step 5: Solve for x
    x = 37,864,369.81/6,938.79
  6. Step 6: Final answer
    x = 5,456.91

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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.