Home / 5,376.17-8,065.87-1,678.79

Finding the Fourth Proportional to 5,376.17, 8,065.87 and 1,678.79

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Solution

The fourth proportional to 5,376.17, 8,065.87 and 1,678.79 is: 2,518.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,376.17 : 8,065.87 = 1,678.79 : x
  2. Step 2: Convert to fraction form
    5,376.17/8,065.87 = 1,678.79/x
  3. Step 3: Cross multiply
    5,376.17x = 8,065.87 × 1,678.79
  4. Step 4: Simplify right side
    5,376.17x = 13,540,857.37
  5. Step 5: Solve for x
    x = 13,540,857.37/5,376.17
  6. Step 6: Final answer
    x = 2,518.68

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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.