Home / 3,392.40-4,680.96-1,976.28

Finding the Fourth Proportional to 3,392.40, 4,680.96 and 1,976.28

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Solution

The fourth proportional to 3,392.40, 4,680.96 and 1,976.28 is: 2,726.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,392.40 : 4,680.96 = 1,976.28 : x
  2. Step 2: Convert to fraction form
    3,392.40/4,680.96 = 1,976.28/x
  3. Step 3: Cross multiply
    3,392.40x = 4,680.96 × 1,976.28
  4. Step 4: Simplify right side
    3,392.40x = 9,250,887.63
  5. Step 5: Solve for x
    x = 9,250,887.63/3,392.40
  6. Step 6: Final answer
    x = 2,726.94

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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.