Home / 6,073.81-8,380.75-3,420.65

Finding the Fourth Proportional to 6,073.81, 8,380.75 and 3,420.65

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Solution

The fourth proportional to 6,073.81, 8,380.75 and 3,420.65 is: 4,719.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,073.81 : 8,380.75 = 3,420.65 : x
  2. Step 2: Convert to fraction form
    6,073.81/8,380.75 = 3,420.65/x
  3. Step 3: Cross multiply
    6,073.81x = 8,380.75 × 3,420.65
  4. Step 4: Simplify right side
    6,073.81x = 28,667,595.38
  5. Step 5: Solve for x
    x = 28,667,595.38/6,073.81
  6. Step 6: Final answer
    x = 4,719.87

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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.