Home / 5,187.48-7,158.45-2,949.30

Finding the Fourth Proportional to 5,187.48, 7,158.45 and 2,949.30

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Solution

The fourth proportional to 5,187.48, 7,158.45 and 2,949.30 is: 4,069.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.48 : 7,158.45 = 2,949.30 : x
  2. Step 2: Convert to fraction form
    5,187.48/7,158.45 = 2,949.30/x
  3. Step 3: Cross multiply
    5,187.48x = 7,158.45 × 2,949.30
  4. Step 4: Simplify right side
    5,187.48x = 21,112,416.59
  5. Step 5: Solve for x
    x = 21,112,416.59/5,187.48
  6. Step 6: Final answer
    x = 4,069.88

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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.