Home / 4,279.05-6,419.49-1,357.56

Finding the Fourth Proportional to 4,279.05, 6,419.49 and 1,357.56

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Solution

The fourth proportional to 4,279.05, 6,419.49 and 1,357.56 is: 2,036.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,279.05 : 6,419.49 = 1,357.56 : x
  2. Step 2: Convert to fraction form
    4,279.05/6,419.49 = 1,357.56/x
  3. Step 3: Cross multiply
    4,279.05x = 6,419.49 × 1,357.56
  4. Step 4: Simplify right side
    4,279.05x = 8,714,842.84
  5. Step 5: Solve for x
    x = 8,714,842.84/4,279.05
  6. Step 6: Final answer
    x = 2,036.63

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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.