Home / 3,411.75-4,707.40-1,919.37

Finding the Fourth Proportional to 3,411.75, 4,707.40 and 1,919.37

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Solution

The fourth proportional to 3,411.75, 4,707.40 and 1,919.37 is: 2,648.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,411.75 : 4,707.40 = 1,919.37 : x
  2. Step 2: Convert to fraction form
    3,411.75/4,707.40 = 1,919.37/x
  3. Step 3: Cross multiply
    3,411.75x = 4,707.40 × 1,919.37
  4. Step 4: Simplify right side
    3,411.75x = 9,035,242.34
  5. Step 5: Solve for x
    x = 9,035,242.34/3,411.75
  6. Step 6: Final answer
    x = 2,648.27

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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.