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Finding the Fourth Proportional to 3,148.84, 4,722.06 and 927.06

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Solution

The fourth proportional to 3,148.84, 4,722.06 and 927.06 is: 1,390.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.84 : 4,722.06 = 927.06 : x
  2. Step 2: Convert to fraction form
    3,148.84/4,722.06 = 927.06/x
  3. Step 3: Cross multiply
    3,148.84x = 4,722.06 × 927.06
  4. Step 4: Simplify right side
    3,148.84x = 4,377,612.92
  5. Step 5: Solve for x
    x = 4,377,612.92/3,148.84
  6. Step 6: Final answer
    x = 1,390.23

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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.