Home / 1,985.58-2,976.48-1,500.80

Finding the Fourth Proportional to 1,985.58, 2,976.48 and 1,500.80

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Solution

The fourth proportional to 1,985.58, 2,976.48 and 1,500.80 is: 2,249.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,985.58 : 2,976.48 = 1,500.80 : x
  2. Step 2: Convert to fraction form
    1,985.58/2,976.48 = 1,500.80/x
  3. Step 3: Cross multiply
    1,985.58x = 2,976.48 × 1,500.80
  4. Step 4: Simplify right side
    1,985.58x = 4,467,086.30
  5. Step 5: Solve for x
    x = 4,467,086.30/1,985.58
  6. Step 6: Final answer
    x = 2,249.76

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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.