Home / 5,136.45-7,102.13-4,480.35

Finding the Fourth Proportional to 5,136.45, 7,102.13 and 4,480.35

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Solution

The fourth proportional to 5,136.45, 7,102.13 and 4,480.35 is: 6,194.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,136.45 : 7,102.13 = 4,480.35 : x
  2. Step 2: Convert to fraction form
    5,136.45/7,102.13 = 4,480.35/x
  3. Step 3: Cross multiply
    5,136.45x = 7,102.13 × 4,480.35
  4. Step 4: Simplify right side
    5,136.45x = 31,820,005.74
  5. Step 5: Solve for x
    x = 31,820,005.74/5,136.45
  6. Step 6: Final answer
    x = 6,194.94

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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.