Home / 5,187.51-7,160.06-3,199.70

Finding the Fourth Proportional to 5,187.51, 7,160.06 and 3,199.70

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Solution

The fourth proportional to 5,187.51, 7,160.06 and 3,199.70 is: 4,416.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.51 : 7,160.06 = 3,199.70 : x
  2. Step 2: Convert to fraction form
    5,187.51/7,160.06 = 3,199.70/x
  3. Step 3: Cross multiply
    5,187.51x = 7,160.06 × 3,199.70
  4. Step 4: Simplify right side
    5,187.51x = 22,910,069.88
  5. Step 5: Solve for x
    x = 22,910,069.88/5,187.51
  6. Step 6: Final answer
    x = 4,416.39

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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.