Home / 5,359.86-8,039.79-3,424.35

Finding the Fourth Proportional to 5,359.86, 8,039.79 and 3,424.35

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Solution

The fourth proportional to 5,359.86, 8,039.79 and 3,424.35 is: 5,136.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,359.86 : 8,039.79 = 3,424.35 : x
  2. Step 2: Convert to fraction form
    5,359.86/8,039.79 = 3,424.35/x
  3. Step 3: Cross multiply
    5,359.86x = 8,039.79 × 3,424.35
  4. Step 4: Simplify right side
    5,359.86x = 27,531,054.89
  5. Step 5: Solve for x
    x = 27,531,054.89/5,359.86
  6. Step 6: Final answer
    x = 5,136.53

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1.5x scale

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.