Home / 5,315.86-7,972.62-2,027.80

Finding the Fourth Proportional to 5,315.86, 7,972.62 and 2,027.80

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Solution

The fourth proportional to 5,315.86, 7,972.62 and 2,027.80 is: 3,041.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315.86 : 7,972.62 = 2,027.80 : x
  2. Step 2: Convert to fraction form
    5,315.86/7,972.62 = 2,027.80/x
  3. Step 3: Cross multiply
    5,315.86x = 7,972.62 × 2,027.80
  4. Step 4: Simplify right side
    5,315.86x = 16,166,878.84
  5. Step 5: Solve for x
    x = 16,166,878.84/5,315.86
  6. Step 6: Final answer
    x = 3,041.25

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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.