Home / 5,126.50-7,072.95-3,136.06

Finding the Fourth Proportional to 5,126.50, 7,072.95 and 3,136.06

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Solution

The fourth proportional to 5,126.50, 7,072.95 and 3,136.06 is: 4,326.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,126.50 : 7,072.95 = 3,136.06 : x
  2. Step 2: Convert to fraction form
    5,126.50/7,072.95 = 3,136.06/x
  3. Step 3: Cross multiply
    5,126.50x = 7,072.95 × 3,136.06
  4. Step 4: Simplify right side
    5,126.50x = 22,181,195.58
  5. Step 5: Solve for x
    x = 22,181,195.58/5,126.50
  6. Step 6: Final answer
    x = 4,326.77

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1.5x scale

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.