Home / 3,158.16-4,738.84-2,130

Finding the Fourth Proportional to 3,158.16, 4,738.84 and 2,130

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Solution

The fourth proportional to 3,158.16, 4,738.84 and 2,130 is: 3,196.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,158.16 : 4,738.84 = 2,130 : x
  2. Step 2: Convert to fraction form
    3,158.16/4,738.84 = 2,130/x
  3. Step 3: Cross multiply
    3,158.16x = 4,738.84 × 2,130
  4. Step 4: Simplify right side
    3,158.16x = 10,093,729.20
  5. Step 5: Solve for x
    x = 10,093,729.20/3,158.16
  6. Step 6: Final answer
    x = 3,196.08

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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.