Home / 3,919.74-5,397.26-3,606.28

Finding the Fourth Proportional to 3,919.74, 5,397.26 and 3,606.28

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Solution

The fourth proportional to 3,919.74, 5,397.26 and 3,606.28 is: 4,965.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919.74 : 5,397.26 = 3,606.28 : x
  2. Step 2: Convert to fraction form
    3,919.74/5,397.26 = 3,606.28/x
  3. Step 3: Cross multiply
    3,919.74x = 5,397.26 × 3,606.28
  4. Step 4: Simplify right side
    3,919.74x = 19,464,030.79
  5. Step 5: Solve for x
    x = 19,464,030.79/3,919.74
  6. Step 6: Final answer
    x = 4,965.64

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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.