Home / 2,987.08-4,480.72-795.80

Finding the Fourth Proportional to 2,987.08, 4,480.72 and 795.80

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Solution

The fourth proportional to 2,987.08, 4,480.72 and 795.80 is: 1,193.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,987.08 : 4,480.72 = 795.80 : x
  2. Step 2: Convert to fraction form
    2,987.08/4,480.72 = 795.80/x
  3. Step 3: Cross multiply
    2,987.08x = 4,480.72 × 795.80
  4. Step 4: Simplify right side
    2,987.08x = 3,565,756.98
  5. Step 5: Solve for x
    x = 3,565,756.98/2,987.08
  6. Step 6: Final answer
    x = 1,193.73

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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.