Home / 2,192.13-3,287.70-631.79

Finding the Fourth Proportional to 2,192.13, 3,287.70 and 631.79

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Solution

The fourth proportional to 2,192.13, 3,287.70 and 631.79 is: 947.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,192.13 : 3,287.70 = 631.79 : x
  2. Step 2: Convert to fraction form
    2,192.13/3,287.70 = 631.79/x
  3. Step 3: Cross multiply
    2,192.13x = 3,287.70 × 631.79
  4. Step 4: Simplify right side
    2,192.13x = 2,077,119.54
  5. Step 5: Solve for x
    x = 2,077,119.54/2,192.13
  6. Step 6: Final answer
    x = 947.53

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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.