Home / 6,707.12-9,255.36-3,722.88

Finding the Fourth Proportional to 6,707.12, 9,255.36 and 3,722.88

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Solution

The fourth proportional to 6,707.12, 9,255.36 and 3,722.88 is: 5,137.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,707.12 : 9,255.36 = 3,722.88 : x
  2. Step 2: Convert to fraction form
    6,707.12/9,255.36 = 3,722.88/x
  3. Step 3: Cross multiply
    6,707.12x = 9,255.36 × 3,722.88
  4. Step 4: Simplify right side
    6,707.12x = 34,456,594.64
  5. Step 5: Solve for x
    x = 34,456,594.64/6,707.12
  6. Step 6: Final answer
    x = 5,137.32

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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.