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Finding the Fourth Proportional to 2,599.81, 3,897.54 and 1,038.85

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Solution

The fourth proportional to 2,599.81, 3,897.54 and 1,038.85 is: 1,557.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,599.81 : 3,897.54 = 1,038.85 : x
  2. Step 2: Convert to fraction form
    2,599.81/3,897.54 = 1,038.85/x
  3. Step 3: Cross multiply
    2,599.81x = 3,897.54 × 1,038.85
  4. Step 4: Simplify right side
    2,599.81x = 4,048,959.43
  5. Step 5: Solve for x
    x = 4,048,959.43/2,599.81
  6. Step 6: Final answer
    x = 1,557.41

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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.