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Finding the Fourth Proportional to 899.71, 1,341.85 and 881.44

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Solution

The fourth proportional to 899.71, 1,341.85 and 881.44 is: 1,314.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    899.71 : 1,341.85 = 881.44 : x
  2. Step 2: Convert to fraction form
    899.71/1,341.85 = 881.44/x
  3. Step 3: Cross multiply
    899.71x = 1,341.85 × 881.44
  4. Step 4: Simplify right side
    899.71x = 1,182,760.26
  5. Step 5: Solve for x
    x = 1,182,760.26/899.71
  6. Step 6: Final answer
    x = 1,314.60

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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.