Home / 4,279.48-6,419.58-1,357

Finding the Fourth Proportional to 4,279.48, 6,419.58 and 1,357

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Solution

The fourth proportional to 4,279.48, 6,419.58 and 1,357 is: 2,035.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,279.48 : 6,419.58 = 1,357 : x
  2. Step 2: Convert to fraction form
    4,279.48/6,419.58 = 1,357/x
  3. Step 3: Cross multiply
    4,279.48x = 6,419.58 × 1,357
  4. Step 4: Simplify right side
    4,279.48x = 8,711,370.06
  5. Step 5: Solve for x
    x = 8,711,370.06/4,279.48
  6. Step 6: Final answer
    x = 2,035.61

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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.