Home / 4,971.28-6,861.36-3,790.24

Finding the Fourth Proportional to 4,971.28, 6,861.36 and 3,790.24

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Solution

The fourth proportional to 4,971.28, 6,861.36 and 3,790.24 is: 5,231.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,971.28 : 6,861.36 = 3,790.24 : x
  2. Step 2: Convert to fraction form
    4,971.28/6,861.36 = 3,790.24/x
  3. Step 3: Cross multiply
    4,971.28x = 6,861.36 × 3,790.24
  4. Step 4: Simplify right side
    4,971.28x = 26,006,201.13
  5. Step 5: Solve for x
    x = 26,006,201.13/4,971.28
  6. Step 6: Final answer
    x = 5,231.29

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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.