Home / 4,929-7,389.36-2,009.40

Finding the Fourth Proportional to 4,929, 7,389.36 and 2,009.40

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Solution

The fourth proportional to 4,929, 7,389.36 and 2,009.40 is: 3,012.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,929 : 7,389.36 = 2,009.40 : x
  2. Step 2: Convert to fraction form
    4,929/7,389.36 = 2,009.40/x
  3. Step 3: Cross multiply
    4,929x = 7,389.36 × 2,009.40
  4. Step 4: Simplify right side
    4,929x = 14,848,179.98
  5. Step 5: Solve for x
    x = 14,848,179.98/4,929
  6. Step 6: Final answer
    x = 3,012.41

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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.