Home / 7,004.81-9,666.85-3,861.20

Finding the Fourth Proportional to 7,004.81, 9,666.85 and 3,861.20

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Solution

The fourth proportional to 7,004.81, 9,666.85 and 3,861.20 is: 5,328.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,004.81 : 9,666.85 = 3,861.20 : x
  2. Step 2: Convert to fraction form
    7,004.81/9,666.85 = 3,861.20/x
  3. Step 3: Cross multiply
    7,004.81x = 9,666.85 × 3,861.20
  4. Step 4: Simplify right side
    7,004.81x = 37,325,655.73
  5. Step 5: Solve for x
    x = 37,325,655.73/7,004.81
  6. Step 6: Final answer
    x = 5,328.57

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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.