Home / 5,280.51-7,286.96-3,011.80

Finding the Fourth Proportional to 5,280.51, 7,286.96 and 3,011.80

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Solution

The fourth proportional to 5,280.51, 7,286.96 and 3,011.80 is: 4,156.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.51 : 7,286.96 = 3,011.80 : x
  2. Step 2: Convert to fraction form
    5,280.51/7,286.96 = 3,011.80/x
  3. Step 3: Cross multiply
    5,280.51x = 7,286.96 × 3,011.80
  4. Step 4: Simplify right side
    5,280.51x = 21,946,897.25
  5. Step 5: Solve for x
    x = 21,946,897.25/5,280.51
  6. Step 6: Final answer
    x = 4,156.21

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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.