Home / 6,720.96-9,278.34-4,204.56

Finding the Fourth Proportional to 6,720.96, 9,278.34 and 4,204.56

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Solution

The fourth proportional to 6,720.96, 9,278.34 and 4,204.56 is: 5,804.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,720.96 : 9,278.34 = 4,204.56 : x
  2. Step 2: Convert to fraction form
    6,720.96/9,278.34 = 4,204.56/x
  3. Step 3: Cross multiply
    6,720.96x = 9,278.34 × 4,204.56
  4. Step 4: Simplify right side
    6,720.96x = 39,011,337.23
  5. Step 5: Solve for x
    x = 39,011,337.23/6,720.96
  6. Step 6: Final answer
    x = 5,804.43

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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.