Home / 6,964.78-9,612.24-3,979.93

Finding the Fourth Proportional to 6,964.78, 9,612.24 and 3,979.93

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Solution

The fourth proportional to 6,964.78, 9,612.24 and 3,979.93 is: 5,492.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,964.78 : 9,612.24 = 3,979.93 : x
  2. Step 2: Convert to fraction form
    6,964.78/9,612.24 = 3,979.93/x
  3. Step 3: Cross multiply
    6,964.78x = 9,612.24 × 3,979.93
  4. Step 4: Simplify right side
    6,964.78x = 38,255,994.28
  5. Step 5: Solve for x
    x = 38,255,994.28/6,964.78
  6. Step 6: Final answer
    x = 5,492.78

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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.