Home / 1,860.81-2,790.19-1,202.59

Finding the Fourth Proportional to 1,860.81, 2,790.19 and 1,202.59

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Solution

The fourth proportional to 1,860.81, 2,790.19 and 1,202.59 is: 1,803.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,860.81 : 2,790.19 = 1,202.59 : x
  2. Step 2: Convert to fraction form
    1,860.81/2,790.19 = 1,202.59/x
  3. Step 3: Cross multiply
    1,860.81x = 2,790.19 × 1,202.59
  4. Step 4: Simplify right side
    1,860.81x = 3,355,454.59
  5. Step 5: Solve for x
    x = 3,355,454.59/1,860.81
  6. Step 6: Final answer
    x = 1,803.22

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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.