Home / 3,005.13-4,474.38-2,990.55

Finding the Fourth Proportional to 3,005.13, 4,474.38 and 2,990.55

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Solution

The fourth proportional to 3,005.13, 4,474.38 and 2,990.55 is: 4,452.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,005.13 : 4,474.38 = 2,990.55 : x
  2. Step 2: Convert to fraction form
    3,005.13/4,474.38 = 2,990.55/x
  3. Step 3: Cross multiply
    3,005.13x = 4,474.38 × 2,990.55
  4. Step 4: Simplify right side
    3,005.13x = 13,380,857.11
  5. Step 5: Solve for x
    x = 13,380,857.11/3,005.13
  6. Step 6: Final answer
    x = 4,452.67

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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.