Home / 3,613.64-5,419.74-1,665.56

Finding the Fourth Proportional to 3,613.64, 5,419.74 and 1,665.56

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Solution

The fourth proportional to 3,613.64, 5,419.74 and 1,665.56 is: 2,498.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,613.64 : 5,419.74 = 1,665.56 : x
  2. Step 2: Convert to fraction form
    3,613.64/5,419.74 = 1,665.56/x
  3. Step 3: Cross multiply
    3,613.64x = 5,419.74 × 1,665.56
  4. Step 4: Simplify right side
    3,613.64x = 9,026,902.15
  5. Step 5: Solve for x
    x = 9,026,902.15/3,613.64
  6. Step 6: Final answer
    x = 2,498.01

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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.