Home / 1,992.04-2,985.80-1,003.28

Finding the Fourth Proportional to 1,992.04, 2,985.80 and 1,003.28

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Solution

The fourth proportional to 1,992.04, 2,985.80 and 1,003.28 is: 1,503.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992.04 : 2,985.80 = 1,003.28 : x
  2. Step 2: Convert to fraction form
    1,992.04/2,985.80 = 1,003.28/x
  3. Step 3: Cross multiply
    1,992.04x = 2,985.80 × 1,003.28
  4. Step 4: Simplify right side
    1,992.04x = 2,995,588.41
  5. Step 5: Solve for x
    x = 2,995,588.41/1,992.04
  6. Step 6: Final answer
    x = 1,503.78

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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.