Home / 2,389.30-3,575.75-1,897.22

Finding the Fourth Proportional to 2,389.30, 3,575.75 and 1,897.22

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Solution

The fourth proportional to 2,389.30, 3,575.75 and 1,897.22 is: 2,839.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,389.30 : 3,575.75 = 1,897.22 : x
  2. Step 2: Convert to fraction form
    2,389.30/3,575.75 = 1,897.22/x
  3. Step 3: Cross multiply
    2,389.30x = 3,575.75 × 1,897.22
  4. Step 4: Simplify right side
    2,389.30x = 6,783,983.87
  5. Step 5: Solve for x
    x = 6,783,983.87/2,389.30
  6. Step 6: Final answer
    x = 2,839.32

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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.