Home / 4,279.30-6,419.80-2,088.07

Finding the Fourth Proportional to 4,279.30, 6,419.80 and 2,088.07

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Solution

The fourth proportional to 4,279.30, 6,419.80 and 2,088.07 is: 3,132.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,279.30 : 6,419.80 = 2,088.07 : x
  2. Step 2: Convert to fraction form
    4,279.30/6,419.80 = 2,088.07/x
  3. Step 3: Cross multiply
    4,279.30x = 6,419.80 × 2,088.07
  4. Step 4: Simplify right side
    4,279.30x = 13,404,991.79
  5. Step 5: Solve for x
    x = 13,404,991.79/4,279.30
  6. Step 6: Final answer
    x = 3,132.52

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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.