Home / 4,779.90-7,170.17-1,269.86

Finding the Fourth Proportional to 4,779.90, 7,170.17 and 1,269.86

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Solution

The fourth proportional to 4,779.90, 7,170.17 and 1,269.86 is: 1,904.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,779.90 : 7,170.17 = 1,269.86 : x
  2. Step 2: Convert to fraction form
    4,779.90/7,170.17 = 1,269.86/x
  3. Step 3: Cross multiply
    4,779.90x = 7,170.17 × 1,269.86
  4. Step 4: Simplify right side
    4,779.90x = 9,105,069.88
  5. Step 5: Solve for x
    x = 9,105,069.88/4,779.90
  6. Step 6: Final answer
    x = 1,904.87

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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.