Home / 2,911.55-4,018.75-1,792.33

Finding the Fourth Proportional to 2,911.55, 4,018.75 and 1,792.33

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Solution

The fourth proportional to 2,911.55, 4,018.75 and 1,792.33 is: 2,473.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911.55 : 4,018.75 = 1,792.33 : x
  2. Step 2: Convert to fraction form
    2,911.55/4,018.75 = 1,792.33/x
  3. Step 3: Cross multiply
    2,911.55x = 4,018.75 × 1,792.33
  4. Step 4: Simplify right side
    2,911.55x = 7,202,911.66
  5. Step 5: Solve for x
    x = 7,202,911.66/2,911.55
  6. Step 6: Final answer
    x = 2,473.91

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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.