Home / 2,981.10-4,108.24-2,184.66

Finding the Fourth Proportional to 2,981.10, 4,108.24 and 2,184.66

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Solution

The fourth proportional to 2,981.10, 4,108.24 and 2,184.66 is: 3,010.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,981.10 : 4,108.24 = 2,184.66 : x
  2. Step 2: Convert to fraction form
    2,981.10/4,108.24 = 2,184.66/x
  3. Step 3: Cross multiply
    2,981.10x = 4,108.24 × 2,184.66
  4. Step 4: Simplify right side
    2,981.10x = 8,975,107.60
  5. Step 5: Solve for x
    x = 8,975,107.60/2,981.10
  6. Step 6: Final answer
    x = 3,010.67

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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.