Home / 3,011.80-4,519.04-1,915.88

Finding the Fourth Proportional to 3,011.80, 4,519.04 and 1,915.88

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Solution

The fourth proportional to 3,011.80, 4,519.04 and 1,915.88 is: 2,874.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,011.80 : 4,519.04 = 1,915.88 : x
  2. Step 2: Convert to fraction form
    3,011.80/4,519.04 = 1,915.88/x
  3. Step 3: Cross multiply
    3,011.80x = 4,519.04 × 1,915.88
  4. Step 4: Simplify right side
    3,011.80x = 8,657,938.36
  5. Step 5: Solve for x
    x = 8,657,938.36/3,011.80
  6. Step 6: Final answer
    x = 2,874.67

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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.