Home / 3,419.46-5,130.44-1,445.58

Finding the Fourth Proportional to 3,419.46, 5,130.44 and 1,445.58

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Solution

The fourth proportional to 3,419.46, 5,130.44 and 1,445.58 is: 2,168.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.46 : 5,130.44 = 1,445.58 : x
  2. Step 2: Convert to fraction form
    3,419.46/5,130.44 = 1,445.58/x
  3. Step 3: Cross multiply
    3,419.46x = 5,130.44 × 1,445.58
  4. Step 4: Simplify right side
    3,419.46x = 7,416,461.46
  5. Step 5: Solve for x
    x = 7,416,461.46/3,419.46
  6. Step 6: Final answer
    x = 2,168.90

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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.