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Finding the Fourth Proportional to 885.88, 1,219.98 and 883

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Solution

The fourth proportional to 885.88, 1,219.98 and 883 is: 1,216.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    885.88 : 1,219.98 = 883 : x
  2. Step 2: Convert to fraction form
    885.88/1,219.98 = 883/x
  3. Step 3: Cross multiply
    885.88x = 1,219.98 × 883
  4. Step 4: Simplify right side
    885.88x = 1,077,242.34
  5. Step 5: Solve for x
    x = 1,077,242.34/885.88
  6. Step 6: Final answer
    x = 1,216.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.