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Finding the Fourth Proportional to 2,888.73, 4,330.26 and 1,039.50

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Solution

The fourth proportional to 2,888.73, 4,330.26 and 1,039.50 is: 1,558.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,888.73 : 4,330.26 = 1,039.50 : x
  2. Step 2: Convert to fraction form
    2,888.73/4,330.26 = 1,039.50/x
  3. Step 3: Cross multiply
    2,888.73x = 4,330.26 × 1,039.50
  4. Step 4: Simplify right side
    2,888.73x = 4,501,305.27
  5. Step 5: Solve for x
    x = 4,501,305.27/2,888.73
  6. Step 6: Final answer
    x = 1,558.23

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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.