Home / 4,279.28-6,419.10-1,357.52

Finding the Fourth Proportional to 4,279.28, 6,419.10 and 1,357.52

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Solution

The fourth proportional to 4,279.28, 6,419.10 and 1,357.52 is: 2,036.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,279.28 : 6,419.10 = 1,357.52 : x
  2. Step 2: Convert to fraction form
    4,279.28/6,419.10 = 1,357.52/x
  3. Step 3: Cross multiply
    4,279.28x = 6,419.10 × 1,357.52
  4. Step 4: Simplify right side
    4,279.28x = 8,714,056.63
  5. Step 5: Solve for x
    x = 8,714,056.63/4,279.28
  6. Step 6: Final answer
    x = 2,036.34

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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.