Home / 1,790.12-2,681.08-866.36

Finding the Fourth Proportional to 1,790.12, 2,681.08 and 866.36

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Solution

The fourth proportional to 1,790.12, 2,681.08 and 866.36 is: 1,297.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,790.12 : 2,681.08 = 866.36 : x
  2. Step 2: Convert to fraction form
    1,790.12/2,681.08 = 866.36/x
  3. Step 3: Cross multiply
    1,790.12x = 2,681.08 × 866.36
  4. Step 4: Simplify right side
    1,790.12x = 2,322,780.47
  5. Step 5: Solve for x
    x = 2,322,780.47/1,790.12
  6. Step 6: Final answer
    x = 1,297.56

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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.