Home / 6,342.10-9,507.75-3,878.65

Finding the Fourth Proportional to 6,342.10, 9,507.75 and 3,878.65

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Solution

The fourth proportional to 6,342.10, 9,507.75 and 3,878.65 is: 5,814.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,342.10 : 9,507.75 = 3,878.65 : x
  2. Step 2: Convert to fraction form
    6,342.10/9,507.75 = 3,878.65/x
  3. Step 3: Cross multiply
    6,342.10x = 9,507.75 × 3,878.65
  4. Step 4: Simplify right side
    6,342.10x = 36,877,231.88
  5. Step 5: Solve for x
    x = 36,877,231.88/6,342.10
  6. Step 6: Final answer
    x = 5,814.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.