Home / 3,139.33-4,333.44-2,695.45

Finding the Fourth Proportional to 3,139.33, 4,333.44 and 2,695.45

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Solution

The fourth proportional to 3,139.33, 4,333.44 and 2,695.45 is: 3,720.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.33 : 4,333.44 = 2,695.45 : x
  2. Step 2: Convert to fraction form
    3,139.33/4,333.44 = 2,695.45/x
  3. Step 3: Cross multiply
    3,139.33x = 4,333.44 × 2,695.45
  4. Step 4: Simplify right side
    3,139.33x = 11,680,570.85
  5. Step 5: Solve for x
    x = 11,680,570.85/3,139.33
  6. Step 6: Final answer
    x = 3,720.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.