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Finding the Fourth Proportional to 3,153.97, 4,730.95 and 1,672.88

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Solution

The fourth proportional to 3,153.97, 4,730.95 and 1,672.88 is: 2,509.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,153.97 : 4,730.95 = 1,672.88 : x
  2. Step 2: Convert to fraction form
    3,153.97/4,730.95 = 1,672.88/x
  3. Step 3: Cross multiply
    3,153.97x = 4,730.95 × 1,672.88
  4. Step 4: Simplify right side
    3,153.97x = 7,914,323.46
  5. Step 5: Solve for x
    x = 7,914,323.46/3,153.97
  6. Step 6: Final answer
    x = 2,509.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.