Home / 3,566.22-4,921.32-1,972.81

Finding the Fourth Proportional to 3,566.22, 4,921.32 and 1,972.81

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Solution

The fourth proportional to 3,566.22, 4,921.32 and 1,972.81 is: 2,722.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,566.22 : 4,921.32 = 1,972.81 : x
  2. Step 2: Convert to fraction form
    3,566.22/4,921.32 = 1,972.81/x
  3. Step 3: Cross multiply
    3,566.22x = 4,921.32 × 1,972.81
  4. Step 4: Simplify right side
    3,566.22x = 9,708,829.31
  5. Step 5: Solve for x
    x = 9,708,829.31/3,566.22
  6. Step 6: Final answer
    x = 2,722.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.