Home / 1,539.56-2,308.80-1,230.68

Finding the Fourth Proportional to 1,539.56, 2,308.80 and 1,230.68

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Solution

The fourth proportional to 1,539.56, 2,308.80 and 1,230.68 is: 1,845.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,539.56 : 2,308.80 = 1,230.68 : x
  2. Step 2: Convert to fraction form
    1,539.56/2,308.80 = 1,230.68/x
  3. Step 3: Cross multiply
    1,539.56x = 2,308.80 × 1,230.68
  4. Step 4: Simplify right side
    1,539.56x = 2,841,393.98
  5. Step 5: Solve for x
    x = 2,841,393.98/1,539.56
  6. Step 6: Final answer
    x = 1,845.59

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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.