Home / 5,126.54-7,075.13-3,136.70

Finding the Fourth Proportional to 5,126.54, 7,075.13 and 3,136.70

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Solution

The fourth proportional to 5,126.54, 7,075.13 and 3,136.70 is: 4,328.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,126.54 : 7,075.13 = 3,136.70 : x
  2. Step 2: Convert to fraction form
    5,126.54/7,075.13 = 3,136.70/x
  3. Step 3: Cross multiply
    5,126.54x = 7,075.13 × 3,136.70
  4. Step 4: Simplify right side
    5,126.54x = 22,192,562.28
  5. Step 5: Solve for x
    x = 22,192,562.28/5,126.54
  6. Step 6: Final answer
    x = 4,328.96

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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.