Home / 2,221.36-3,332.52-1,126.32

Finding the Fourth Proportional to 2,221.36, 3,332.52 and 1,126.32

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Solution

The fourth proportional to 2,221.36, 3,332.52 and 1,126.32 is: 1,689.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.36 : 3,332.52 = 1,126.32 : x
  2. Step 2: Convert to fraction form
    2,221.36/3,332.52 = 1,126.32/x
  3. Step 3: Cross multiply
    2,221.36x = 3,332.52 × 1,126.32
  4. Step 4: Simplify right side
    2,221.36x = 3,753,483.93
  5. Step 5: Solve for x
    x = 3,753,483.93/2,221.36
  6. Step 6: Final answer
    x = 1,689.72

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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.