Home / 5,187.14-7,157.97-2,948.70

Finding the Fourth Proportional to 5,187.14, 7,157.97 and 2,948.70

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Solution

The fourth proportional to 5,187.14, 7,157.97 and 2,948.70 is: 4,069.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.14 : 7,157.97 = 2,948.70 : x
  2. Step 2: Convert to fraction form
    5,187.14/7,157.97 = 2,948.70/x
  3. Step 3: Cross multiply
    5,187.14x = 7,157.97 × 2,948.70
  4. Step 4: Simplify right side
    5,187.14x = 21,106,732.98
  5. Step 5: Solve for x
    x = 21,106,732.98/5,187.14
  6. Step 6: Final answer
    x = 4,069.05

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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.