Home / 4,820.12-6,652.87-3,138.60

Finding the Fourth Proportional to 4,820.12, 6,652.87 and 3,138.60

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Solution

The fourth proportional to 4,820.12, 6,652.87 and 3,138.60 is: 4,331.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,820.12 : 6,652.87 = 3,138.60 : x
  2. Step 2: Convert to fraction form
    4,820.12/6,652.87 = 3,138.60/x
  3. Step 3: Cross multiply
    4,820.12x = 6,652.87 × 3,138.60
  4. Step 4: Simplify right side
    4,820.12x = 20,880,697.78
  5. Step 5: Solve for x
    x = 20,880,697.78/4,820.12
  6. Step 6: Final answer
    x = 4,331.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.