Home / 4,120.10-6,170.55-3,140.90

Finding the Fourth Proportional to 4,120.10, 6,170.55 and 3,140.90

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Solution

The fourth proportional to 4,120.10, 6,170.55 and 3,140.90 is: 4,704.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.10 : 6,170.55 = 3,140.90 : x
  2. Step 2: Convert to fraction form
    4,120.10/6,170.55 = 3,140.90/x
  3. Step 3: Cross multiply
    4,120.10x = 6,170.55 × 3,140.90
  4. Step 4: Simplify right side
    4,120.10x = 19,381,080.50
  5. Step 5: Solve for x
    x = 19,381,080.50/4,120.10
  6. Step 6: Final answer
    x = 4,704.03

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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.