Home / 6,288.96-8,678.79-3,932.45

Finding the Fourth Proportional to 6,288.96, 8,678.79 and 3,932.45

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Solution

The fourth proportional to 6,288.96, 8,678.79 and 3,932.45 is: 5,426.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,288.96 : 8,678.79 = 3,932.45 : x
  2. Step 2: Convert to fraction form
    6,288.96/8,678.79 = 3,932.45/x
  3. Step 3: Cross multiply
    6,288.96x = 8,678.79 × 3,932.45
  4. Step 4: Simplify right side
    6,288.96x = 34,128,864.34
  5. Step 5: Solve for x
    x = 34,128,864.34/6,288.96
  6. Step 6: Final answer
    x = 5,426.79

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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.