Home / 3,411.25-4,707.52-1,919.16

Finding the Fourth Proportional to 3,411.25, 4,707.52 and 1,919.16

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Solution

The fourth proportional to 3,411.25, 4,707.52 and 1,919.16 is: 2,648.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,411.25 : 4,707.52 = 1,919.16 : x
  2. Step 2: Convert to fraction form
    3,411.25/4,707.52 = 1,919.16/x
  3. Step 3: Cross multiply
    3,411.25x = 4,707.52 × 1,919.16
  4. Step 4: Simplify right side
    3,411.25x = 9,034,508.54
  5. Step 5: Solve for x
    x = 9,034,508.54/3,411.25
  6. Step 6: Final answer
    x = 2,648.45

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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.