Home / 2,985.35-4,117.57-1,922.42

Finding the Fourth Proportional to 2,985.35, 4,117.57 and 1,922.42

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Solution

The fourth proportional to 2,985.35, 4,117.57 and 1,922.42 is: 2,651.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,985.35 : 4,117.57 = 1,922.42 : x
  2. Step 2: Convert to fraction form
    2,985.35/4,117.57 = 1,922.42/x
  3. Step 3: Cross multiply
    2,985.35x = 4,117.57 × 1,922.42
  4. Step 4: Simplify right side
    2,985.35x = 7,915,704.41
  5. Step 5: Solve for x
    x = 7,915,704.41/2,985.35
  6. Step 6: Final answer
    x = 2,651.52

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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.