Home / 1,780.04-2,669.38-711.14

Finding the Fourth Proportional to 1,780.04, 2,669.38 and 711.14

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Solution

The fourth proportional to 1,780.04, 2,669.38 and 711.14 is: 1,066.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,780.04 : 2,669.38 = 711.14 : x
  2. Step 2: Convert to fraction form
    1,780.04/2,669.38 = 711.14/x
  3. Step 3: Cross multiply
    1,780.04x = 2,669.38 × 711.14
  4. Step 4: Simplify right side
    1,780.04x = 1,898,308.54
  5. Step 5: Solve for x
    x = 1,898,308.54/1,780.04
  6. Step 6: Final answer
    x = 1,066.44

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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.