Home / 2,845.90-3,927.29-1,603.90

Finding the Fourth Proportional to 2,845.90, 3,927.29 and 1,603.90

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Solution

The fourth proportional to 2,845.90, 3,927.29 and 1,603.90 is: 2,213.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,845.90 : 3,927.29 = 1,603.90 : x
  2. Step 2: Convert to fraction form
    2,845.90/3,927.29 = 1,603.90/x
  3. Step 3: Cross multiply
    2,845.90x = 3,927.29 × 1,603.90
  4. Step 4: Simplify right side
    2,845.90x = 6,298,980.43
  5. Step 5: Solve for x
    x = 6,298,980.43/2,845.90
  6. Step 6: Final answer
    x = 2,213.35

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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.