Home / 1,764.38-2,646.84-710.19

Finding the Fourth Proportional to 1,764.38, 2,646.84 and 710.19

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Solution

The fourth proportional to 1,764.38, 2,646.84 and 710.19 is: 1,065.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,764.38 : 2,646.84 = 710.19 : x
  2. Step 2: Convert to fraction form
    1,764.38/2,646.84 = 710.19/x
  3. Step 3: Cross multiply
    1,764.38x = 2,646.84 × 710.19
  4. Step 4: Simplify right side
    1,764.38x = 1,879,759.30
  5. Step 5: Solve for x
    x = 1,879,759.30/1,764.38
  6. Step 6: Final answer
    x = 1,065.39

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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.