Home / 2,911.50-4,018.11-1,669.74

Finding the Fourth Proportional to 2,911.50, 4,018.11 and 1,669.74

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Solution

The fourth proportional to 2,911.50, 4,018.11 and 1,669.74 is: 2,304.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911.50 : 4,018.11 = 1,669.74 : x
  2. Step 2: Convert to fraction form
    2,911.50/4,018.11 = 1,669.74/x
  3. Step 3: Cross multiply
    2,911.50x = 4,018.11 × 1,669.74
  4. Step 4: Simplify right side
    2,911.50x = 6,709,198.99
  5. Step 5: Solve for x
    x = 6,709,198.99/2,911.50
  6. Step 6: Final answer
    x = 2,304.38

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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.