Home / 2,988.05-4,481.93-1,140.03

Finding the Fourth Proportional to 2,988.05, 4,481.93 and 1,140.03

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Solution

The fourth proportional to 2,988.05, 4,481.93 and 1,140.03 is: 1,709.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.05 : 4,481.93 = 1,140.03 : x
  2. Step 2: Convert to fraction form
    2,988.05/4,481.93 = 1,140.03/x
  3. Step 3: Cross multiply
    2,988.05x = 4,481.93 × 1,140.03
  4. Step 4: Simplify right side
    2,988.05x = 5,109,537.51
  5. Step 5: Solve for x
    x = 5,109,537.51/2,988.05
  6. Step 6: Final answer
    x = 1,709.99

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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.