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Finding the Fourth Proportional to 1,927.22, 2,891.00 and 887.51

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Solution

The fourth proportional to 1,927.22, 2,891.00 and 887.51 is: 1,331.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,927.22 : 2,891.00 = 887.51 : x
  2. Step 2: Convert to fraction form
    1,927.22/2,891.00 = 887.51/x
  3. Step 3: Cross multiply
    1,927.22x = 2,891.00 × 887.51
  4. Step 4: Simplify right side
    1,927.22x = 2,565,779.17
  5. Step 5: Solve for x
    x = 2,565,779.17/1,927.22
  6. Step 6: Final answer
    x = 1,331.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.