Home / 5,230.74-7,218.18-3,136.02

Finding the Fourth Proportional to 5,230.74, 7,218.18 and 3,136.02

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Solution

The fourth proportional to 5,230.74, 7,218.18 and 3,136.02 is: 4,327.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,230.74 : 7,218.18 = 3,136.02 : x
  2. Step 2: Convert to fraction form
    5,230.74/7,218.18 = 3,136.02/x
  3. Step 3: Cross multiply
    5,230.74x = 7,218.18 × 3,136.02
  4. Step 4: Simplify right side
    5,230.74x = 22,636,356.84
  5. Step 5: Solve for x
    x = 22,636,356.84/5,230.74
  6. Step 6: Final answer
    x = 4,327.56

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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.