Home / 2,960.08-4,086.40-2,329.20

Finding the Fourth Proportional to 2,960.08, 4,086.40 and 2,329.20

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Solution

The fourth proportional to 2,960.08, 4,086.40 and 2,329.20 is: 3,215.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,960.08 : 4,086.40 = 2,329.20 : x
  2. Step 2: Convert to fraction form
    2,960.08/4,086.40 = 2,329.20/x
  3. Step 3: Cross multiply
    2,960.08x = 4,086.40 × 2,329.20
  4. Step 4: Simplify right side
    2,960.08x = 9,518,042.88
  5. Step 5: Solve for x
    x = 9,518,042.88/2,960.08
  6. Step 6: Final answer
    x = 3,215.47

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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.