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Finding the Fourth Proportional to 3,479.88, 4,802.34 and 1,908.08

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Solution

The fourth proportional to 3,479.88, 4,802.34 and 1,908.08 is: 2,633.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,479.88 : 4,802.34 = 1,908.08 : x
  2. Step 2: Convert to fraction form
    3,479.88/4,802.34 = 1,908.08/x
  3. Step 3: Cross multiply
    3,479.88x = 4,802.34 × 1,908.08
  4. Step 4: Simplify right side
    3,479.88x = 9,163,248.91
  5. Step 5: Solve for x
    x = 9,163,248.91/3,479.88
  6. Step 6: Final answer
    x = 2,633.21

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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.