Home / 1,902.28-2,852.80-669.48

Finding the Fourth Proportional to 1,902.28, 2,852.80 and 669.48

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Solution

The fourth proportional to 1,902.28, 2,852.80 and 669.48 is: 1,004.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,902.28 : 2,852.80 = 669.48 : x
  2. Step 2: Convert to fraction form
    1,902.28/2,852.80 = 669.48/x
  3. Step 3: Cross multiply
    1,902.28x = 2,852.80 × 669.48
  4. Step 4: Simplify right side
    1,902.28x = 1,909,892.54
  5. Step 5: Solve for x
    x = 1,909,892.54/1,902.28
  6. Step 6: Final answer
    x = 1,004.00

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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.