Home / 3,946.42-5,917.57-1,172.71

Finding the Fourth Proportional to 3,946.42, 5,917.57 and 1,172.71

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Solution

The fourth proportional to 3,946.42, 5,917.57 and 1,172.71 is: 1,758.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,946.42 : 5,917.57 = 1,172.71 : x
  2. Step 2: Convert to fraction form
    3,946.42/5,917.57 = 1,172.71/x
  3. Step 3: Cross multiply
    3,946.42x = 5,917.57 × 1,172.71
  4. Step 4: Simplify right side
    3,946.42x = 6,939,593.51
  5. Step 5: Solve for x
    x = 6,939,593.51/3,946.42
  6. Step 6: Final answer
    x = 1,758.45

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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.