Home / 3,480.78-4,803.52-1,908.88

Finding the Fourth Proportional to 3,480.78, 4,803.52 and 1,908.88

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Solution

The fourth proportional to 3,480.78, 4,803.52 and 1,908.88 is: 2,634.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,480.78 : 4,803.52 = 1,908.88 : x
  2. Step 2: Convert to fraction form
    3,480.78/4,803.52 = 1,908.88/x
  3. Step 3: Cross multiply
    3,480.78x = 4,803.52 × 1,908.88
  4. Step 4: Simplify right side
    3,480.78x = 9,169,343.26
  5. Step 5: Solve for x
    x = 9,169,343.26/3,480.78
  6. Step 6: Final answer
    x = 2,634.28

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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.