Home / 5,381.19-8,018.94-5,205.02

Finding the Fourth Proportional to 5,381.19, 8,018.94 and 5,205.02

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Solution

The fourth proportional to 5,381.19, 8,018.94 and 5,205.02 is: 7,756.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,381.19 : 8,018.94 = 5,205.02 : x
  2. Step 2: Convert to fraction form
    5,381.19/8,018.94 = 5,205.02/x
  3. Step 3: Cross multiply
    5,381.19x = 8,018.94 × 5,205.02
  4. Step 4: Simplify right side
    5,381.19x = 41,738,702.98
  5. Step 5: Solve for x
    x = 41,738,702.98/5,381.19
  6. Step 6: Final answer
    x = 7,756.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.