Home / 3,621.42-5,420.79-2,323.80

Finding the Fourth Proportional to 3,621.42, 5,420.79 and 2,323.80

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Solution

The fourth proportional to 3,621.42, 5,420.79 and 2,323.80 is: 3,478.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.42 : 5,420.79 = 2,323.80 : x
  2. Step 2: Convert to fraction form
    3,621.42/5,420.79 = 2,323.80/x
  3. Step 3: Cross multiply
    3,621.42x = 5,420.79 × 2,323.80
  4. Step 4: Simplify right side
    3,621.42x = 12,596,831.80
  5. Step 5: Solve for x
    x = 12,596,831.80/3,621.42
  6. Step 6: Final answer
    x = 3,478.42

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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.