Home / 3,411.15-4,707.50-1,919.00

Finding the Fourth Proportional to 3,411.15, 4,707.50 and 1,919.00

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Solution

The fourth proportional to 3,411.15, 4,707.50 and 1,919.00 is: 2,648.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,411.15 : 4,707.50 = 1,919.00 : x
  2. Step 2: Convert to fraction form
    3,411.15/4,707.50 = 1,919.00/x
  3. Step 3: Cross multiply
    3,411.15x = 4,707.50 × 1,919.00
  4. Step 4: Simplify right side
    3,411.15x = 9,033,659.37
  5. Step 5: Solve for x
    x = 9,033,659.37/3,411.15
  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.