Home / 1,538.19-2,303.64-1,188.27

Finding the Fourth Proportional to 1,538.19, 2,303.64 and 1,188.27

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Solution

The fourth proportional to 1,538.19, 2,303.64 and 1,188.27 is: 1,779.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,538.19 : 2,303.64 = 1,188.27 : x
  2. Step 2: Convert to fraction form
    1,538.19/2,303.64 = 1,188.27/x
  3. Step 3: Cross multiply
    1,538.19x = 2,303.64 × 1,188.27
  4. Step 4: Simplify right side
    1,538.19x = 2,737,346.30
  5. Step 5: Solve for x
    x = 2,737,346.30/1,538.19
  6. Step 6: Final answer
    x = 1,779.59

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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.