Home / 3,386.72-5,079.95-1,195.40

Finding the Fourth Proportional to 3,386.72, 5,079.95 and 1,195.40

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Solution

The fourth proportional to 3,386.72, 5,079.95 and 1,195.40 is: 1,793.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,386.72 : 5,079.95 = 1,195.40 : x
  2. Step 2: Convert to fraction form
    3,386.72/5,079.95 = 1,195.40/x
  3. Step 3: Cross multiply
    3,386.72x = 5,079.95 × 1,195.40
  4. Step 4: Simplify right side
    3,386.72x = 6,072,540.85
  5. Step 5: Solve for x
    x = 6,072,540.85/3,386.72
  6. Step 6: Final answer
    x = 1,793.05

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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.