Home / 6,119.29-9,178.74-1,959.25

Finding the Fourth Proportional to 6,119.29, 9,178.74 and 1,959.25

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Solution

The fourth proportional to 6,119.29, 9,178.74 and 1,959.25 is: 2,938.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,119.29 : 9,178.74 = 1,959.25 : x
  2. Step 2: Convert to fraction form
    6,119.29/9,178.74 = 1,959.25/x
  3. Step 3: Cross multiply
    6,119.29x = 9,178.74 × 1,959.25
  4. Step 4: Simplify right side
    6,119.29x = 17,983,446.35
  5. Step 5: Solve for x
    x = 17,983,446.35/6,119.29
  6. Step 6: Final answer
    x = 2,938.81

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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.