Home / 6,929.64-9,561.79-3,945.53

Finding the Fourth Proportional to 6,929.64, 9,561.79 and 3,945.53

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Solution

The fourth proportional to 6,929.64, 9,561.79 and 3,945.53 is: 5,444.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,929.64 : 9,561.79 = 3,945.53 : x
  2. Step 2: Convert to fraction form
    6,929.64/9,561.79 = 3,945.53/x
  3. Step 3: Cross multiply
    6,929.64x = 9,561.79 × 3,945.53
  4. Step 4: Simplify right side
    6,929.64x = 37,726,329.30
  5. Step 5: Solve for x
    x = 37,726,329.30/6,929.64
  6. Step 6: Final answer
    x = 5,444.20

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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.