Home / 2,645.39-3,646.15-2,007.11

Finding the Fourth Proportional to 2,645.39, 3,646.15 and 2,007.11

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Solution

The fourth proportional to 2,645.39, 3,646.15 and 2,007.11 is: 2,766.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,645.39 : 3,646.15 = 2,007.11 : x
  2. Step 2: Convert to fraction form
    2,645.39/3,646.15 = 2,007.11/x
  3. Step 3: Cross multiply
    2,645.39x = 3,646.15 × 2,007.11
  4. Step 4: Simplify right side
    2,645.39x = 7,318,228.22
  5. Step 5: Solve for x
    x = 7,318,228.22/2,645.39
  6. Step 6: Final answer
    x = 2,766.41

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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.