Home / 3,396.28-4,687-1,904.23

Finding the Fourth Proportional to 3,396.28, 4,687 and 1,904.23

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Solution

The fourth proportional to 3,396.28, 4,687 and 1,904.23 is: 2,627.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,396.28 : 4,687 = 1,904.23 : x
  2. Step 2: Convert to fraction form
    3,396.28/4,687 = 1,904.23/x
  3. Step 3: Cross multiply
    3,396.28x = 4,687 × 1,904.23
  4. Step 4: Simplify right side
    3,396.28x = 8,925,126.01
  5. Step 5: Solve for x
    x = 8,925,126.01/3,396.28
  6. Step 6: Final answer
    x = 2,627.91

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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.