Home / 5,126.42-7,074.72-3,136.35

Finding the Fourth Proportional to 5,126.42, 7,074.72 and 3,136.35

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Solution

The fourth proportional to 5,126.42, 7,074.72 and 3,136.35 is: 4,328.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,126.42 : 7,074.72 = 3,136.35 : x
  2. Step 2: Convert to fraction form
    5,126.42/7,074.72 = 3,136.35/x
  3. Step 3: Cross multiply
    5,126.42x = 7,074.72 × 3,136.35
  4. Step 4: Simplify right side
    5,126.42x = 22,188,798.07
  5. Step 5: Solve for x
    x = 22,188,798.07/5,126.42
  6. Step 6: Final answer
    x = 4,328.32

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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.