Home / 7,077.08-9,764.88-3,933.20

Finding the Fourth Proportional to 7,077.08, 9,764.88 and 3,933.20

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Solution

The fourth proportional to 7,077.08, 9,764.88 and 3,933.20 is: 5,426.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,077.08 : 9,764.88 = 3,933.20 : x
  2. Step 2: Convert to fraction form
    7,077.08/9,764.88 = 3,933.20/x
  3. Step 3: Cross multiply
    7,077.08x = 9,764.88 × 3,933.20
  4. Step 4: Simplify right side
    7,077.08x = 38,407,226.02
  5. Step 5: Solve for x
    x = 38,407,226.02/7,077.08
  6. Step 6: Final answer
    x = 5,426.99

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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.