Home / 2,119.49-3,177.11-1,006.95

Finding the Fourth Proportional to 2,119.49, 3,177.11 and 1,006.95

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Solution

The fourth proportional to 2,119.49, 3,177.11 and 1,006.95 is: 1,509.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119.49 : 3,177.11 = 1,006.95 : x
  2. Step 2: Convert to fraction form
    2,119.49/3,177.11 = 1,006.95/x
  3. Step 3: Cross multiply
    2,119.49x = 3,177.11 × 1,006.95
  4. Step 4: Simplify right side
    2,119.49x = 3,199,177.55
  5. Step 5: Solve for x
    x = 3,199,177.55/2,119.49
  6. Step 6: Final answer
    x = 1,509.41

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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.