Home / 3,124.35-4,310.70-1,779.99

Finding the Fourth Proportional to 3,124.35, 4,310.70 and 1,779.99

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Solution

The fourth proportional to 3,124.35, 4,310.70 and 1,779.99 is: 2,455.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.35 : 4,310.70 = 1,779.99 : x
  2. Step 2: Convert to fraction form
    3,124.35/4,310.70 = 1,779.99/x
  3. Step 3: Cross multiply
    3,124.35x = 4,310.70 × 1,779.99
  4. Step 4: Simplify right side
    3,124.35x = 7,673,002.89
  5. Step 5: Solve for x
    x = 7,673,002.89/3,124.35
  6. Step 6: Final answer
    x = 2,455.87

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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.