Home / 1,946.19-2,920.20-850.87

Finding the Fourth Proportional to 1,946.19, 2,920.20 and 850.87

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Solution

The fourth proportional to 1,946.19, 2,920.20 and 850.87 is: 1,276.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,946.19 : 2,920.20 = 850.87 : x
  2. Step 2: Convert to fraction form
    1,946.19/2,920.20 = 850.87/x
  3. Step 3: Cross multiply
    1,946.19x = 2,920.20 × 850.87
  4. Step 4: Simplify right side
    1,946.19x = 2,484,691.72
  5. Step 5: Solve for x
    x = 2,484,691.72/1,946.19
  6. Step 6: Final answer
    x = 1,276.70

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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.