Home / 3,888.44-5,823.37-2,130.80

Finding the Fourth Proportional to 3,888.44, 5,823.37 and 2,130.80

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Solution

The fourth proportional to 3,888.44, 5,823.37 and 2,130.80 is: 3,191.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,888.44 : 5,823.37 = 2,130.80 : x
  2. Step 2: Convert to fraction form
    3,888.44/5,823.37 = 2,130.80/x
  3. Step 3: Cross multiply
    3,888.44x = 5,823.37 × 2,130.80
  4. Step 4: Simplify right side
    3,888.44x = 12,408,431.47
  5. Step 5: Solve for x
    x = 12,408,431.47/3,888.44
  6. Step 6: Final answer
    x = 3,191.11

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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.