Home / 3,643.35-5,466.63-1,911.57

Finding the Fourth Proportional to 3,643.35, 5,466.63 and 1,911.57

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Solution

The fourth proportional to 3,643.35, 5,466.63 and 1,911.57 is: 2,868.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,643.35 : 5,466.63 = 1,911.57 : x
  2. Step 2: Convert to fraction form
    3,643.35/5,466.63 = 1,911.57/x
  3. Step 3: Cross multiply
    3,643.35x = 5,466.63 × 1,911.57
  4. Step 4: Simplify right side
    3,643.35x = 10,449,845.91
  5. Step 5: Solve for x
    x = 10,449,845.91/3,643.35
  6. Step 6: Final answer
    x = 2,868.20

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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.