Home / 3,396.21-4,686.90-1,904.19

Finding the Fourth Proportional to 3,396.21, 4,686.90 and 1,904.19

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Solution

The fourth proportional to 3,396.21, 4,686.90 and 1,904.19 is: 2,627.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,396.21 : 4,686.90 = 1,904.19 : x
  2. Step 2: Convert to fraction form
    3,396.21/4,686.90 = 1,904.19/x
  3. Step 3: Cross multiply
    3,396.21x = 4,686.90 × 1,904.19
  4. Step 4: Simplify right side
    3,396.21x = 8,924,748.11
  5. Step 5: Solve for x
    x = 8,924,748.11/3,396.21
  6. Step 6: Final answer
    x = 2,627.86

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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.