Home / 2,919.90-4,380.60-1,532.85

Finding the Fourth Proportional to 2,919.90, 4,380.60 and 1,532.85

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Solution

The fourth proportional to 2,919.90, 4,380.60 and 1,532.85 is: 2,299.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.90 : 4,380.60 = 1,532.85 : x
  2. Step 2: Convert to fraction form
    2,919.90/4,380.60 = 1,532.85/x
  3. Step 3: Cross multiply
    2,919.90x = 4,380.60 × 1,532.85
  4. Step 4: Simplify right side
    2,919.90x = 6,714,802.71
  5. Step 5: Solve for x
    x = 6,714,802.71/2,919.90
  6. Step 6: Final answer
    x = 2,299.67

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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.