Home / 6,774.80-9,349.20-3,790.72

Finding the Fourth Proportional to 6,774.80, 9,349.20 and 3,790.72

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Solution

The fourth proportional to 6,774.80, 9,349.20 and 3,790.72 is: 5,231.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,774.80 : 9,349.20 = 3,790.72 : x
  2. Step 2: Convert to fraction form
    6,774.80/9,349.20 = 3,790.72/x
  3. Step 3: Cross multiply
    6,774.80x = 9,349.20 × 3,790.72
  4. Step 4: Simplify right side
    6,774.80x = 35,440,199.42
  5. Step 5: Solve for x
    x = 35,440,199.42/6,774.80
  6. Step 6: Final answer
    x = 5,231.18

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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.