Home / 5,315.85-7,973.78-1,852.29

Finding the Fourth Proportional to 5,315.85, 7,973.78 and 1,852.29

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Solution

The fourth proportional to 5,315.85, 7,973.78 and 1,852.29 is: 2,778.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315.85 : 7,973.78 = 1,852.29 : x
  2. Step 2: Convert to fraction form
    5,315.85/7,973.78 = 1,852.29/x
  3. Step 3: Cross multiply
    5,315.85x = 7,973.78 × 1,852.29
  4. Step 4: Simplify right side
    5,315.85x = 14,769,743.69
  5. Step 5: Solve for x
    x = 14,769,743.69/5,315.85
  6. Step 6: Final answer
    x = 2,778.44

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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.