Home / 6,938.80-9,576.38-3,955.26

Finding the Fourth Proportional to 6,938.80, 9,576.38 and 3,955.26

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Solution

The fourth proportional to 6,938.80, 9,576.38 and 3,955.26 is: 5,458.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,938.80 : 9,576.38 = 3,955.26 : x
  2. Step 2: Convert to fraction form
    6,938.80/9,576.38 = 3,955.26/x
  3. Step 3: Cross multiply
    6,938.80x = 9,576.38 × 3,955.26
  4. Step 4: Simplify right side
    6,938.80x = 37,877,072.76
  5. Step 5: Solve for x
    x = 37,877,072.76/6,938.80
  6. Step 6: Final answer
    x = 5,458.74

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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.