Home / 5,136.09-7,087.85-3,011.15

Finding the Fourth Proportional to 5,136.09, 7,087.85 and 3,011.15

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Solution

The fourth proportional to 5,136.09, 7,087.85 and 3,011.15 is: 4,155.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,136.09 : 7,087.85 = 3,011.15 : x
  2. Step 2: Convert to fraction form
    5,136.09/7,087.85 = 3,011.15/x
  3. Step 3: Cross multiply
    5,136.09x = 7,087.85 × 3,011.15
  4. Step 4: Simplify right side
    5,136.09x = 21,342,529.03
  5. Step 5: Solve for x
    x = 21,342,529.03/5,136.09
  6. Step 6: Final answer
    x = 4,155.40

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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.