Home / 2,950.39-4,419.20-1,388.05

Finding the Fourth Proportional to 2,950.39, 4,419.20 and 1,388.05

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Solution

The fourth proportional to 2,950.39, 4,419.20 and 1,388.05 is: 2,079.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,950.39 : 4,419.20 = 1,388.05 : x
  2. Step 2: Convert to fraction form
    2,950.39/4,419.20 = 1,388.05/x
  3. Step 3: Cross multiply
    2,950.39x = 4,419.20 × 1,388.05
  4. Step 4: Simplify right side
    2,950.39x = 6,134,070.56
  5. Step 5: Solve for x
    x = 6,134,070.56/2,950.39
  6. Step 6: Final answer
    x = 2,079.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.