Home / 3,419.42-4,718.28-2,002.88

Finding the Fourth Proportional to 3,419.42, 4,718.28 and 2,002.88

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Solution

The fourth proportional to 3,419.42, 4,718.28 and 2,002.88 is: 2,763.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.42 : 4,718.28 = 2,002.88 : x
  2. Step 2: Convert to fraction form
    3,419.42/4,718.28 = 2,002.88/x
  3. Step 3: Cross multiply
    3,419.42x = 4,718.28 × 2,002.88
  4. Step 4: Simplify right side
    3,419.42x = 9,450,148.65
  5. Step 5: Solve for x
    x = 9,450,148.65/3,419.42
  6. Step 6: Final answer
    x = 2,763.67

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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.