Home / 3,419.93-5,130.66-1,861.34

Finding the Fourth Proportional to 3,419.93, 5,130.66 and 1,861.34

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Solution

The fourth proportional to 3,419.93, 5,130.66 and 1,861.34 is: 2,792.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.93 : 5,130.66 = 1,861.34 : x
  2. Step 2: Convert to fraction form
    3,419.93/5,130.66 = 1,861.34/x
  3. Step 3: Cross multiply
    3,419.93x = 5,130.66 × 1,861.34
  4. Step 4: Simplify right side
    3,419.93x = 9,549,902.68
  5. Step 5: Solve for x
    x = 9,549,902.68/3,419.93
  6. Step 6: Final answer
    x = 2,792.43

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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.