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Finding the Fourth Proportional to 1,826.78, 2,739.60 and 593.91

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Solution

The fourth proportional to 1,826.78, 2,739.60 and 593.91 is: 890.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,826.78 : 2,739.60 = 593.91 : x
  2. Step 2: Convert to fraction form
    1,826.78/2,739.60 = 593.91/x
  3. Step 3: Cross multiply
    1,826.78x = 2,739.60 × 593.91
  4. Step 4: Simplify right side
    1,826.78x = 1,627,059.17
  5. Step 5: Solve for x
    x = 1,627,059.17/1,826.78
  6. Step 6: Final answer
    x = 890.67

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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.