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Finding the Fourth Proportional to 1,633.95, 2,254.77 and 887.89

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Solution

The fourth proportional to 1,633.95, 2,254.77 and 887.89 is: 1,225.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,633.95 : 2,254.77 = 887.89 : x
  2. Step 2: Convert to fraction form
    1,633.95/2,254.77 = 887.89/x
  3. Step 3: Cross multiply
    1,633.95x = 2,254.77 × 887.89
  4. Step 4: Simplify right side
    1,633.95x = 2,001,987.74
  5. Step 5: Solve for x
    x = 2,001,987.74/1,633.95
  6. Step 6: Final answer
    x = 1,225.24

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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.