Home / 6,864.48-9,472.80-3,720.60

Finding the Fourth Proportional to 6,864.48, 9,472.80 and 3,720.60

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Solution

The fourth proportional to 6,864.48, 9,472.80 and 3,720.60 is: 5,134.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,864.48 : 9,472.80 = 3,720.60 : x
  2. Step 2: Convert to fraction form
    6,864.48/9,472.80 = 3,720.60/x
  3. Step 3: Cross multiply
    6,864.48x = 9,472.80 × 3,720.60
  4. Step 4: Simplify right side
    6,864.48x = 35,244,499.68
  5. Step 5: Solve for x
    x = 35,244,499.68/6,864.48
  6. Step 6: Final answer
    x = 5,134.33

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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.