Home / 3,124.20-4,672.53-2,779.95

Finding the Fourth Proportional to 3,124.20, 4,672.53 and 2,779.95

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Solution

The fourth proportional to 3,124.20, 4,672.53 and 2,779.95 is: 4,157.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.20 : 4,672.53 = 2,779.95 : x
  2. Step 2: Convert to fraction form
    3,124.20/4,672.53 = 2,779.95/x
  3. Step 3: Cross multiply
    3,124.20x = 4,672.53 × 2,779.95
  4. Step 4: Simplify right side
    3,124.20x = 12,989,399.77
  5. Step 5: Solve for x
    x = 12,989,399.77/3,124.20
  6. Step 6: Final answer
    x = 4,157.67

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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.