Home / 7,005.29-9,667.19-3,861.77

Finding the Fourth Proportional to 7,005.29, 9,667.19 and 3,861.77

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Solution

The fourth proportional to 7,005.29, 9,667.19 and 3,861.77 is: 5,329.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,005.29 : 9,667.19 = 3,861.77 : x
  2. Step 2: Convert to fraction form
    7,005.29/9,667.19 = 3,861.77/x
  3. Step 3: Cross multiply
    7,005.29x = 9,667.19 × 3,861.77
  4. Step 4: Simplify right side
    7,005.29x = 37,332,445.02
  5. Step 5: Solve for x
    x = 37,332,445.02/7,005.29
  6. Step 6: Final answer
    x = 5,329.18

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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.