Home / 1,860.03-2,786.40-1,447.20

Finding the Fourth Proportional to 1,860.03, 2,786.40 and 1,447.20

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Solution

The fourth proportional to 1,860.03, 2,786.40 and 1,447.20 is: 2,167.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,860.03 : 2,786.40 = 1,447.20 : x
  2. Step 2: Convert to fraction form
    1,860.03/2,786.40 = 1,447.20/x
  3. Step 3: Cross multiply
    1,860.03x = 2,786.40 × 1,447.20
  4. Step 4: Simplify right side
    1,860.03x = 4,032,478.08
  5. Step 5: Solve for x
    x = 4,032,478.08/1,860.03
  6. Step 6: Final answer
    x = 2,167.96

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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.