Home / 3,645.38-5,465.91-1,392.92

Finding the Fourth Proportional to 3,645.38, 5,465.91 and 1,392.92

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Solution

The fourth proportional to 3,645.38, 5,465.91 and 1,392.92 is: 2,088.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,645.38 : 5,465.91 = 1,392.92 : x
  2. Step 2: Convert to fraction form
    3,645.38/5,465.91 = 1,392.92/x
  3. Step 3: Cross multiply
    3,645.38x = 5,465.91 × 1,392.92
  4. Step 4: Simplify right side
    3,645.38x = 7,613,575.36
  5. Step 5: Solve for x
    x = 7,613,575.36/3,645.38
  6. Step 6: Final answer
    x = 2,088.55

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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.