Home / 5,187.96-7,158.45-2,949.71

Finding the Fourth Proportional to 5,187.96, 7,158.45 and 2,949.71

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Solution

The fourth proportional to 5,187.96, 7,158.45 and 2,949.71 is: 4,070.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.96 : 7,158.45 = 2,949.71 : x
  2. Step 2: Convert to fraction form
    5,187.96/7,158.45 = 2,949.71/x
  3. Step 3: Cross multiply
    5,187.96x = 7,158.45 × 2,949.71
  4. Step 4: Simplify right side
    5,187.96x = 21,115,315.76
  5. Step 5: Solve for x
    x = 21,115,315.76/5,187.96
  6. Step 6: Final answer
    x = 4,070.06

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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.