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Finding the Fourth Proportional to 849.36, 1,162.03 and 845.72

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Solution

The fourth proportional to 849.36, 1,162.03 and 845.72 is: 1,157.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    849.36 : 1,162.03 = 845.72 : x
  2. Step 2: Convert to fraction form
    849.36/1,162.03 = 845.72/x
  3. Step 3: Cross multiply
    849.36x = 1,162.03 × 845.72
  4. Step 4: Simplify right side
    849.36x = 982,752.01
  5. Step 5: Solve for x
    x = 982,752.01/849.36
  6. Step 6: Final answer
    x = 1,157.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.