Home / 3,411.57-4,707.48-1,919.43

Finding the Fourth Proportional to 3,411.57, 4,707.48 and 1,919.43

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Solution

The fourth proportional to 3,411.57, 4,707.48 and 1,919.43 is: 2,648.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,411.57 : 4,707.48 = 1,919.43 : x
  2. Step 2: Convert to fraction form
    3,411.57/4,707.48 = 1,919.43/x
  3. Step 3: Cross multiply
    3,411.57x = 4,707.48 × 1,919.43
  4. Step 4: Simplify right side
    3,411.57x = 9,035,678.34
  5. Step 5: Solve for x
    x = 9,035,678.34/3,411.57
  6. Step 6: Final answer
    x = 2,648.54

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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.