Home / 3,615.03-4,988.82-1,999.99

Finding the Fourth Proportional to 3,615.03, 4,988.82 and 1,999.99

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Solution

The fourth proportional to 3,615.03, 4,988.82 and 1,999.99 is: 2,760.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.03 : 4,988.82 = 1,999.99 : x
  2. Step 2: Convert to fraction form
    3,615.03/4,988.82 = 1,999.99/x
  3. Step 3: Cross multiply
    3,615.03x = 4,988.82 × 1,999.99
  4. Step 4: Simplify right side
    3,615.03x = 9,977,590.11
  5. Step 5: Solve for x
    x = 9,977,590.11/3,615.03
  6. Step 6: Final answer
    x = 2,760.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.