Home / 3,021.23-4,529.57-1,981.50

Finding the Fourth Proportional to 3,021.23, 4,529.57 and 1,981.50

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Solution

The fourth proportional to 3,021.23, 4,529.57 and 1,981.50 is: 2,970.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,021.23 : 4,529.57 = 1,981.50 : x
  2. Step 2: Convert to fraction form
    3,021.23/4,529.57 = 1,981.50/x
  3. Step 3: Cross multiply
    3,021.23x = 4,529.57 × 1,981.50
  4. Step 4: Simplify right side
    3,021.23x = 8,975,342.96
  5. Step 5: Solve for x
    x = 8,975,342.96/3,021.23
  6. Step 6: Final answer
    x = 2,970.76

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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.