Home / 5,389.80-8,081.21-2,103.23

Finding the Fourth Proportional to 5,389.80, 8,081.21 and 2,103.23

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Solution

The fourth proportional to 5,389.80, 8,081.21 and 2,103.23 is: 3,153.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.80 : 8,081.21 = 2,103.23 : x
  2. Step 2: Convert to fraction form
    5,389.80/8,081.21 = 2,103.23/x
  3. Step 3: Cross multiply
    5,389.80x = 8,081.21 × 2,103.23
  4. Step 4: Simplify right side
    5,389.80x = 16,996,592.39
  5. Step 5: Solve for x
    x = 16,996,592.39/5,389.80
  6. Step 6: Final answer
    x = 3,153.47

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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.