Home / 3,030.08-4,540.26-1,989.30

Finding the Fourth Proportional to 3,030.08, 4,540.26 and 1,989.30

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Solution

The fourth proportional to 3,030.08, 4,540.26 and 1,989.30 is: 2,980.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,030.08 : 4,540.26 = 1,989.30 : x
  2. Step 2: Convert to fraction form
    3,030.08/4,540.26 = 1,989.30/x
  3. Step 3: Cross multiply
    3,030.08x = 4,540.26 × 1,989.30
  4. Step 4: Simplify right side
    3,030.08x = 9,031,939.22
  5. Step 5: Solve for x
    x = 9,031,939.22/3,030.08
  6. Step 6: Final answer
    x = 2,980.76

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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.