Home / 3,107.10-4,283.60-2,110.65

Finding the Fourth Proportional to 3,107.10, 4,283.60 and 2,110.65

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Solution

The fourth proportional to 3,107.10, 4,283.60 and 2,110.65 is: 2,909.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,107.10 : 4,283.60 = 2,110.65 : x
  2. Step 2: Convert to fraction form
    3,107.10/4,283.60 = 2,110.65/x
  3. Step 3: Cross multiply
    3,107.10x = 4,283.60 × 2,110.65
  4. Step 4: Simplify right side
    3,107.10x = 9,041,169.79
  5. Step 5: Solve for x
    x = 9,041,169.79/3,107.10
  6. Step 6: Final answer
    x = 2,909.84

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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.