Home / 4,677.84-6,455.52-3,108.78

Finding the Fourth Proportional to 4,677.84, 6,455.52 and 3,108.78

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Solution

The fourth proportional to 4,677.84, 6,455.52 and 3,108.78 is: 4,290.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,677.84 : 6,455.52 = 3,108.78 : x
  2. Step 2: Convert to fraction form
    4,677.84/6,455.52 = 3,108.78/x
  3. Step 3: Cross multiply
    4,677.84x = 6,455.52 × 3,108.78
  4. Step 4: Simplify right side
    4,677.84x = 20,068,791.47
  5. Step 5: Solve for x
    x = 20,068,791.47/4,677.84
  6. Step 6: Final answer
    x = 4,290.18

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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.