Home / 3,450.51-4,761.72-1,878.57

Finding the Fourth Proportional to 3,450.51, 4,761.72 and 1,878.57

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Solution

The fourth proportional to 3,450.51, 4,761.72 and 1,878.57 is: 2,592.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,450.51 : 4,761.72 = 1,878.57 : x
  2. Step 2: Convert to fraction form
    3,450.51/4,761.72 = 1,878.57/x
  3. Step 3: Cross multiply
    3,450.51x = 4,761.72 × 1,878.57
  4. Step 4: Simplify right side
    3,450.51x = 8,945,224.34
  5. Step 5: Solve for x
    x = 8,945,224.34/3,450.51
  6. Step 6: Final answer
    x = 2,592.44

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1.5x scale

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.