Home / 1,651.24-2,482.33-1,290.39

Finding the Fourth Proportional to 1,651.24, 2,482.33 and 1,290.39

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Solution

The fourth proportional to 1,651.24, 2,482.33 and 1,290.39 is: 1,939.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,651.24 : 2,482.33 = 1,290.39 : x
  2. Step 2: Convert to fraction form
    1,651.24/2,482.33 = 1,290.39/x
  3. Step 3: Cross multiply
    1,651.24x = 2,482.33 × 1,290.39
  4. Step 4: Simplify right side
    1,651.24x = 3,203,173.81
  5. Step 5: Solve for x
    x = 3,203,173.81/1,651.24
  6. Step 6: Final answer
    x = 1,939.86

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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.