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Finding the Fourth Proportional to 901.08, 1,340.64 and 884.64

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Solution

The fourth proportional to 901.08, 1,340.64 and 884.64 is: 1,316.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    901.08 : 1,340.64 = 884.64 : x
  2. Step 2: Convert to fraction form
    901.08/1,340.64 = 884.64/x
  3. Step 3: Cross multiply
    901.08x = 1,340.64 × 884.64
  4. Step 4: Simplify right side
    901.08x = 1,185,983.77
  5. Step 5: Solve for x
    x = 1,185,983.77/901.08
  6. Step 6: Final answer
    x = 1,316.18

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.