Home / 2,911.18-4,015.61-1,776.33

Finding the Fourth Proportional to 2,911.18, 4,015.61 and 1,776.33

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Solution

The fourth proportional to 2,911.18, 4,015.61 and 1,776.33 is: 2,450.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911.18 : 4,015.61 = 1,776.33 : x
  2. Step 2: Convert to fraction form
    2,911.18/4,015.61 = 1,776.33/x
  3. Step 3: Cross multiply
    2,911.18x = 4,015.61 × 1,776.33
  4. Step 4: Simplify right side
    2,911.18x = 7,133,052.95
  5. Step 5: Solve for x
    x = 7,133,052.95/2,911.18
  6. Step 6: Final answer
    x = 2,450.23

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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.