Home / 3,172.55-4,740.46-2,290.87

Finding the Fourth Proportional to 3,172.55, 4,740.46 and 2,290.87

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Solution

The fourth proportional to 3,172.55, 4,740.46 and 2,290.87 is: 3,423.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172.55 : 4,740.46 = 2,290.87 : x
  2. Step 2: Convert to fraction form
    3,172.55/4,740.46 = 2,290.87/x
  3. Step 3: Cross multiply
    3,172.55x = 4,740.46 × 2,290.87
  4. Step 4: Simplify right side
    3,172.55x = 10,859,777.60
  5. Step 5: Solve for x
    x = 10,859,777.60/3,172.55
  6. Step 6: Final answer
    x = 3,423.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.