Home / 5,315.50-7,973.70-1,984.66

Finding the Fourth Proportional to 5,315.50, 7,973.70 and 1,984.66

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Solution

The fourth proportional to 5,315.50, 7,973.70 and 1,984.66 is: 2,977.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315.50 : 7,973.70 = 1,984.66 : x
  2. Step 2: Convert to fraction form
    5,315.50/7,973.70 = 1,984.66/x
  3. Step 3: Cross multiply
    5,315.50x = 7,973.70 × 1,984.66
  4. Step 4: Simplify right side
    5,315.50x = 15,825,083.44
  5. Step 5: Solve for x
    x = 15,825,083.44/5,315.50
  6. Step 6: Final answer
    x = 2,977.16

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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.