Home / 5,518.19-7,614.49-3,127.98

Finding the Fourth Proportional to 5,518.19, 7,614.49 and 3,127.98

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Solution

The fourth proportional to 5,518.19, 7,614.49 and 3,127.98 is: 4,316.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.19 : 7,614.49 = 3,127.98 : x
  2. Step 2: Convert to fraction form
    5,518.19/7,614.49 = 3,127.98/x
  3. Step 3: Cross multiply
    5,518.19x = 7,614.49 × 3,127.98
  4. Step 4: Simplify right side
    5,518.19x = 23,817,972.43
  5. Step 5: Solve for x
    x = 23,817,972.43/5,518.19
  6. Step 6: Final answer
    x = 4,316.27

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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.