Home / 5,136.12-7,700.94-2,829.24

Finding the Fourth Proportional to 5,136.12, 7,700.94 and 2,829.24

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Solution

The fourth proportional to 5,136.12, 7,700.94 and 2,829.24 is: 4,242.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,136.12 : 7,700.94 = 2,829.24 : x
  2. Step 2: Convert to fraction form
    5,136.12/7,700.94 = 2,829.24/x
  3. Step 3: Cross multiply
    5,136.12x = 7,700.94 × 2,829.24
  4. Step 4: Simplify right side
    5,136.12x = 21,787,807.49
  5. Step 5: Solve for x
    x = 21,787,807.49/5,136.12
  6. Step 6: Final answer
    x = 4,242.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.