Home / 1,779.39-2,669.09-546.79

Finding the Fourth Proportional to 1,779.39, 2,669.09 and 546.79

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Solution

The fourth proportional to 1,779.39, 2,669.09 and 546.79 is: 820.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,779.39 : 2,669.09 = 546.79 : x
  2. Step 2: Convert to fraction form
    1,779.39/2,669.09 = 546.79/x
  3. Step 3: Cross multiply
    1,779.39x = 2,669.09 × 546.79
  4. Step 4: Simplify right side
    1,779.39x = 1,459,436.36
  5. Step 5: Solve for x
    x = 1,459,436.36/1,779.39
  6. Step 6: Final answer
    x = 820.19

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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.