Home / 2,911.75-4,017.81-1,792.87

Finding the Fourth Proportional to 2,911.75, 4,017.81 and 1,792.87

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Solution

The fourth proportional to 2,911.75, 4,017.81 and 1,792.87 is: 2,473.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911.75 : 4,017.81 = 1,792.87 : x
  2. Step 2: Convert to fraction form
    2,911.75/4,017.81 = 1,792.87/x
  3. Step 3: Cross multiply
    2,911.75x = 4,017.81 × 1,792.87
  4. Step 4: Simplify right side
    2,911.75x = 7,203,411.01
  5. Step 5: Solve for x
    x = 7,203,411.01/2,911.75
  6. Step 6: Final answer
    x = 2,473.91

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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.