Home / 5,270.76-7,908.96-3,421.44

Finding the Fourth Proportional to 5,270.76, 7,908.96 and 3,421.44

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Solution

The fourth proportional to 5,270.76, 7,908.96 and 3,421.44 is: 5,133.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,270.76 : 7,908.96 = 3,421.44 : x
  2. Step 2: Convert to fraction form
    5,270.76/7,908.96 = 3,421.44/x
  3. Step 3: Cross multiply
    5,270.76x = 7,908.96 × 3,421.44
  4. Step 4: Simplify right side
    5,270.76x = 27,060,032.10
  5. Step 5: Solve for x
    x = 27,060,032.10/5,270.76
  6. Step 6: Final answer
    x = 5,133.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.