Home / 4,086.45-6,130.37-1,621.30

Finding the Fourth Proportional to 4,086.45, 6,130.37 and 1,621.30

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Solution

The fourth proportional to 4,086.45, 6,130.37 and 1,621.30 is: 2,432.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,086.45 : 6,130.37 = 1,621.30 : x
  2. Step 2: Convert to fraction form
    4,086.45/6,130.37 = 1,621.30/x
  3. Step 3: Cross multiply
    4,086.45x = 6,130.37 × 1,621.30
  4. Step 4: Simplify right side
    4,086.45x = 9,939,168.88
  5. Step 5: Solve for x
    x = 9,939,168.88/4,086.45
  6. Step 6: Final answer
    x = 2,432.23

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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.