Home / 4,279.28-6,418.96-1,357.60

Finding the Fourth Proportional to 4,279.28, 6,418.96 and 1,357.60

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Solution

The fourth proportional to 4,279.28, 6,418.96 and 1,357.60 is: 2,036.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,279.28 : 6,418.96 = 1,357.60 : x
  2. Step 2: Convert to fraction form
    4,279.28/6,418.96 = 1,357.60/x
  3. Step 3: Cross multiply
    4,279.28x = 6,418.96 × 1,357.60
  4. Step 4: Simplify right side
    4,279.28x = 8,714,380.10
  5. Step 5: Solve for x
    x = 8,714,380.10/4,279.28
  6. Step 6: Final answer
    x = 2,036.41

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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.