Home / 1,779.48-2,668.96-1,288.24

Finding the Fourth Proportional to 1,779.48, 2,668.96 and 1,288.24

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Solution

The fourth proportional to 1,779.48, 2,668.96 and 1,288.24 is: 1,932.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,779.48 : 2,668.96 = 1,288.24 : x
  2. Step 2: Convert to fraction form
    1,779.48/2,668.96 = 1,288.24/x
  3. Step 3: Cross multiply
    1,779.48x = 2,668.96 × 1,288.24
  4. Step 4: Simplify right side
    1,779.48x = 3,438,261.03
  5. Step 5: Solve for x
    x = 3,438,261.03/1,779.48
  6. Step 6: Final answer
    x = 1,932.17

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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.