Home / 3,419.64-5,126.16-1,879.56

Finding the Fourth Proportional to 3,419.64, 5,126.16 and 1,879.56

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Solution

The fourth proportional to 3,419.64, 5,126.16 and 1,879.56 is: 2,817.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.64 : 5,126.16 = 1,879.56 : x
  2. Step 2: Convert to fraction form
    3,419.64/5,126.16 = 1,879.56/x
  3. Step 3: Cross multiply
    3,419.64x = 5,126.16 × 1,879.56
  4. Step 4: Simplify right side
    3,419.64x = 9,634,925.29
  5. Step 5: Solve for x
    x = 9,634,925.29/3,419.64
  6. Step 6: Final answer
    x = 2,817.53

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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.