Home / 3,411.30-4,707.36-1,919.46

Finding the Fourth Proportional to 3,411.30, 4,707.36 and 1,919.46

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Solution

The fourth proportional to 3,411.30, 4,707.36 and 1,919.46 is: 2,648.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,411.30 : 4,707.36 = 1,919.46 : x
  2. Step 2: Convert to fraction form
    3,411.30/4,707.36 = 1,919.46/x
  3. Step 3: Cross multiply
    3,411.30x = 4,707.36 × 1,919.46
  4. Step 4: Simplify right side
    3,411.30x = 9,035,589.23
  5. Step 5: Solve for x
    x = 9,035,589.23/3,411.30
  6. Step 6: Final answer
    x = 2,648.72

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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.