Home / 4,189.78-6,280.35-1,882.90

Finding the Fourth Proportional to 4,189.78, 6,280.35 and 1,882.90

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Solution

The fourth proportional to 4,189.78, 6,280.35 and 1,882.90 is: 2,822.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,189.78 : 6,280.35 = 1,882.90 : x
  2. Step 2: Convert to fraction form
    4,189.78/6,280.35 = 1,882.90/x
  3. Step 3: Cross multiply
    4,189.78x = 6,280.35 × 1,882.90
  4. Step 4: Simplify right side
    4,189.78x = 11,825,271.02
  5. Step 5: Solve for x
    x = 11,825,271.02/4,189.78
  6. Step 6: Final answer
    x = 2,822.41

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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.