Home / 4,901.72-7,354.62-1,979.28

Finding the Fourth Proportional to 4,901.72, 7,354.62 and 1,979.28

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Solution

The fourth proportional to 4,901.72, 7,354.62 and 1,979.28 is: 2,969.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,901.72 : 7,354.62 = 1,979.28 : x
  2. Step 2: Convert to fraction form
    4,901.72/7,354.62 = 1,979.28/x
  3. Step 3: Cross multiply
    4,901.72x = 7,354.62 × 1,979.28
  4. Step 4: Simplify right side
    4,901.72x = 14,556,852.27
  5. Step 5: Solve for x
    x = 14,556,852.27/4,901.72
  6. Step 6: Final answer
    x = 2,969.75

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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.