Home / 5,021.29-6,928.81-2,782.99

Finding the Fourth Proportional to 5,021.29, 6,928.81 and 2,782.99

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Solution

The fourth proportional to 5,021.29, 6,928.81 and 2,782.99 is: 3,840.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,021.29 : 6,928.81 = 2,782.99 : x
  2. Step 2: Convert to fraction form
    5,021.29/6,928.81 = 2,782.99/x
  3. Step 3: Cross multiply
    5,021.29x = 6,928.81 × 2,782.99
  4. Step 4: Simplify right side
    5,021.29x = 19,282,808.94
  5. Step 5: Solve for x
    x = 19,282,808.94/5,021.29
  6. Step 6: Final answer
    x = 3,840.21

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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.