Home / 7,005.26-9,667.28-3,861.38

Finding the Fourth Proportional to 7,005.26, 9,667.28 and 3,861.38

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Solution

The fourth proportional to 7,005.26, 9,667.28 and 3,861.38 is: 5,328.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,005.26 : 9,667.28 = 3,861.38 : x
  2. Step 2: Convert to fraction form
    7,005.26/9,667.28 = 3,861.38/x
  3. Step 3: Cross multiply
    7,005.26x = 9,667.28 × 3,861.38
  4. Step 4: Simplify right side
    7,005.26x = 37,329,041.65
  5. Step 5: Solve for x
    x = 37,329,041.65/7,005.26
  6. Step 6: Final answer
    x = 5,328.72

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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.