Home / 3,119.93-4,680.64-1,039.95

Finding the Fourth Proportional to 3,119.93, 4,680.64 and 1,039.95

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Solution

The fourth proportional to 3,119.93, 4,680.64 and 1,039.95 is: 1,560.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.93 : 4,680.64 = 1,039.95 : x
  2. Step 2: Convert to fraction form
    3,119.93/4,680.64 = 1,039.95/x
  3. Step 3: Cross multiply
    3,119.93x = 4,680.64 × 1,039.95
  4. Step 4: Simplify right side
    3,119.93x = 4,867,628.97
  5. Step 5: Solve for x
    x = 4,867,628.97/3,119.93
  6. Step 6: Final answer
    x = 1,560.17

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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.