Home / 3,148.81-4,722.17-1,274.22

Finding the Fourth Proportional to 3,148.81, 4,722.17 and 1,274.22

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Solution

The fourth proportional to 3,148.81, 4,722.17 and 1,274.22 is: 1,910.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.81 : 4,722.17 = 1,274.22 : x
  2. Step 2: Convert to fraction form
    3,148.81/4,722.17 = 1,274.22/x
  3. Step 3: Cross multiply
    3,148.81x = 4,722.17 × 1,274.22
  4. Step 4: Simplify right side
    3,148.81x = 6,017,077.09
  5. Step 5: Solve for x
    x = 6,017,077.09/3,148.81
  6. Step 6: Final answer
    x = 1,910.91

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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.