Home / 1,920.36-2,882.58-1,615.56

Finding the Fourth Proportional to 1,920.36, 2,882.58 and 1,615.56

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Solution

The fourth proportional to 1,920.36, 2,882.58 and 1,615.56 is: 2,425.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,920.36 : 2,882.58 = 1,615.56 : x
  2. Step 2: Convert to fraction form
    1,920.36/2,882.58 = 1,615.56/x
  3. Step 3: Cross multiply
    1,920.36x = 2,882.58 × 1,615.56
  4. Step 4: Simplify right side
    1,920.36x = 4,656,980.94
  5. Step 5: Solve for x
    x = 4,656,980.94/1,920.36
  6. Step 6: Final answer
    x = 2,425.06

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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.