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Finding the Fourth Proportional to 3,865.54, 5,798.34 and 1,556.50

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Solution

The fourth proportional to 3,865.54, 5,798.34 and 1,556.50 is: 2,334.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,865.54 : 5,798.34 = 1,556.50 : x
  2. Step 2: Convert to fraction form
    3,865.54/5,798.34 = 1,556.50/x
  3. Step 3: Cross multiply
    3,865.54x = 5,798.34 × 1,556.50
  4. Step 4: Simplify right side
    3,865.54x = 9,025,116.21
  5. Step 5: Solve for x
    x = 9,025,116.21/3,865.54
  6. Step 6: Final answer
    x = 2,334.76

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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.