Home / 3,302.25-4,557.31-1,905

Finding the Fourth Proportional to 3,302.25, 4,557.31 and 1,905

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Solution

The fourth proportional to 3,302.25, 4,557.31 and 1,905 is: 2,629.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,302.25 : 4,557.31 = 1,905 : x
  2. Step 2: Convert to fraction form
    3,302.25/4,557.31 = 1,905/x
  3. Step 3: Cross multiply
    3,302.25x = 4,557.31 × 1,905
  4. Step 4: Simplify right side
    3,302.25x = 8,681,670.79
  5. Step 5: Solve for x
    x = 8,681,670.79/3,302.25
  6. Step 6: Final answer
    x = 2,629.02

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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.