Home / 4,919.88-6,786.40-2,929.08

Finding the Fourth Proportional to 4,919.88, 6,786.40 and 2,929.08

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Solution

The fourth proportional to 4,919.88, 6,786.40 and 2,929.08 is: 4,040.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919.88 : 6,786.40 = 2,929.08 : x
  2. Step 2: Convert to fraction form
    4,919.88/6,786.40 = 2,929.08/x
  3. Step 3: Cross multiply
    4,919.88x = 6,786.40 × 2,929.08
  4. Step 4: Simplify right side
    4,919.88x = 19,877,908.51
  5. Step 5: Solve for x
    x = 19,877,908.51/4,919.88
  6. Step 6: Final answer
    x = 4,040.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.