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Finding the Fourth Proportional to 3,150.98, 4,727.38 and 959.88

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Solution

The fourth proportional to 3,150.98, 4,727.38 and 959.88 is: 1,440.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,150.98 : 4,727.38 = 959.88 : x
  2. Step 2: Convert to fraction form
    3,150.98/4,727.38 = 959.88/x
  3. Step 3: Cross multiply
    3,150.98x = 4,727.38 × 959.88
  4. Step 4: Simplify right side
    3,150.98x = 4,537,717.51
  5. Step 5: Solve for x
    x = 4,537,717.51/3,150.98
  6. Step 6: Final answer
    x = 1,440.10

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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.