Home / 4,699.62-7,045.38-1,780.02

Finding the Fourth Proportional to 4,699.62, 7,045.38 and 1,780.02

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Solution

The fourth proportional to 4,699.62, 7,045.38 and 1,780.02 is: 2,668.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,699.62 : 7,045.38 = 1,780.02 : x
  2. Step 2: Convert to fraction form
    4,699.62/7,045.38 = 1,780.02/x
  3. Step 3: Cross multiply
    4,699.62x = 7,045.38 × 1,780.02
  4. Step 4: Simplify right side
    4,699.62x = 12,540,917.31
  5. Step 5: Solve for x
    x = 12,540,917.31/4,699.62
  6. Step 6: Final answer
    x = 2,668.50

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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.