Home / 2,192.22-3,287.86-631.94

Finding the Fourth Proportional to 2,192.22, 3,287.86 and 631.94

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Solution

The fourth proportional to 2,192.22, 3,287.86 and 631.94 is: 947.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,192.22 : 3,287.86 = 631.94 : x
  2. Step 2: Convert to fraction form
    2,192.22/3,287.86 = 631.94/x
  3. Step 3: Cross multiply
    2,192.22x = 3,287.86 × 631.94
  4. Step 4: Simplify right side
    2,192.22x = 2,077,712.23
  5. Step 5: Solve for x
    x = 2,077,712.23/2,192.22
  6. Step 6: Final answer
    x = 947.77

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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.