Home / 5,136.74-7,087.02-2,867.70

Finding the Fourth Proportional to 5,136.74, 7,087.02 and 2,867.70

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Solution

The fourth proportional to 5,136.74, 7,087.02 and 2,867.70 is: 3,956.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,136.74 : 7,087.02 = 2,867.70 : x
  2. Step 2: Convert to fraction form
    5,136.74/7,087.02 = 2,867.70/x
  3. Step 3: Cross multiply
    5,136.74x = 7,087.02 × 2,867.70
  4. Step 4: Simplify right side
    5,136.74x = 20,323,447.25
  5. Step 5: Solve for x
    x = 20,323,447.25/5,136.74
  6. Step 6: Final answer
    x = 3,956.49

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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.