Home / 2,762.55-4,145.18-2,104.20

Finding the Fourth Proportional to 2,762.55, 4,145.18 and 2,104.20

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Solution

The fourth proportional to 2,762.55, 4,145.18 and 2,104.20 is: 3,157.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,762.55 : 4,145.18 = 2,104.20 : x
  2. Step 2: Convert to fraction form
    2,762.55/4,145.18 = 2,104.20/x
  3. Step 3: Cross multiply
    2,762.55x = 4,145.18 × 2,104.20
  4. Step 4: Simplify right side
    2,762.55x = 8,722,277.24
  5. Step 5: Solve for x
    x = 8,722,277.24/2,762.55
  6. Step 6: Final answer
    x = 3,157.33

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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.