Home / 4,779.45-7,170.03-2,145.99

Finding the Fourth Proportional to 4,779.45, 7,170.03 and 2,145.99

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Solution

The fourth proportional to 4,779.45, 7,170.03 and 2,145.99 is: 3,219.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,779.45 : 7,170.03 = 2,145.99 : x
  2. Step 2: Convert to fraction form
    4,779.45/7,170.03 = 2,145.99/x
  3. Step 3: Cross multiply
    4,779.45x = 7,170.03 × 2,145.99
  4. Step 4: Simplify right side
    4,779.45x = 15,386,812.68
  5. Step 5: Solve for x
    x = 15,386,812.68/4,779.45
  6. Step 6: Final answer
    x = 3,219.37

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1.5x scale

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.