Home / 1,047.04-1,568.34-851.12

Finding the Fourth Proportional to 1,047.04, 1,568.34 and 851.12

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Solution

The fourth proportional to 1,047.04, 1,568.34 and 851.12 is: 1,274.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,047.04 : 1,568.34 = 851.12 : x
  2. Step 2: Convert to fraction form
    1,047.04/1,568.34 = 851.12/x
  3. Step 3: Cross multiply
    1,047.04x = 1,568.34 × 851.12
  4. Step 4: Simplify right side
    1,047.04x = 1,334,845.54
  5. Step 5: Solve for x
    x = 1,334,845.54/1,047.04
  6. Step 6: Final answer
    x = 1,274.88

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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.