Home / 5,091.54-7,016.80-3,970.70

Finding the Fourth Proportional to 5,091.54, 7,016.80 and 3,970.70

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Solution

The fourth proportional to 5,091.54, 7,016.80 and 3,970.70 is: 5,472.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,091.54 : 7,016.80 = 3,970.70 : x
  2. Step 2: Convert to fraction form
    5,091.54/7,016.80 = 3,970.70/x
  3. Step 3: Cross multiply
    5,091.54x = 7,016.80 × 3,970.70
  4. Step 4: Simplify right side
    5,091.54x = 27,861,607.76
  5. Step 5: Solve for x
    x = 27,861,607.76/5,091.54
  6. Step 6: Final answer
    x = 5,472.14

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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.