Home / 2,107.09-3,155.10-1,365.55

Finding the Fourth Proportional to 2,107.09, 3,155.10 and 1,365.55

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Solution

The fourth proportional to 2,107.09, 3,155.10 and 1,365.55 is: 2,044.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,107.09 : 3,155.10 = 1,365.55 : x
  2. Step 2: Convert to fraction form
    2,107.09/3,155.10 = 1,365.55/x
  3. Step 3: Cross multiply
    2,107.09x = 3,155.10 × 1,365.55
  4. Step 4: Simplify right side
    2,107.09x = 4,308,446.81
  5. Step 5: Solve for x
    x = 4,308,446.81/2,107.09
  6. Step 6: Final answer
    x = 2,044.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.