Home / 5,330.50-7,356.09-2,972.80

Finding the Fourth Proportional to 5,330.50, 7,356.09 and 2,972.80

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Solution

The fourth proportional to 5,330.50, 7,356.09 and 2,972.80 is: 4,102.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,330.50 : 7,356.09 = 2,972.80 : x
  2. Step 2: Convert to fraction form
    5,330.50/7,356.09 = 2,972.80/x
  3. Step 3: Cross multiply
    5,330.50x = 7,356.09 × 2,972.80
  4. Step 4: Simplify right side
    5,330.50x = 21,868,184.35
  5. Step 5: Solve for x
    x = 21,868,184.35/5,330.50
  6. Step 6: Final answer
    x = 4,102.46

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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.