Home / 6,938.64-9,575.28-3,955.68

Finding the Fourth Proportional to 6,938.64, 9,575.28 and 3,955.68

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Solution

The fourth proportional to 6,938.64, 9,575.28 and 3,955.68 is: 5,458.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,938.64 : 9,575.28 = 3,955.68 : x
  2. Step 2: Convert to fraction form
    6,938.64/9,575.28 = 3,955.68/x
  3. Step 3: Cross multiply
    6,938.64x = 9,575.28 × 3,955.68
  4. Step 4: Simplify right side
    6,938.64x = 37,876,743.59
  5. Step 5: Solve for x
    x = 37,876,743.59/6,938.64
  6. Step 6: Final answer
    x = 5,458.81

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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.