Home / 4,425.22-6,638.18-1,138.30

Finding the Fourth Proportional to 4,425.22, 6,638.18 and 1,138.30

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Solution

The fourth proportional to 4,425.22, 6,638.18 and 1,138.30 is: 1,707.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,425.22 : 6,638.18 = 1,138.30 : x
  2. Step 2: Convert to fraction form
    4,425.22/6,638.18 = 1,138.30/x
  3. Step 3: Cross multiply
    4,425.22x = 6,638.18 × 1,138.30
  4. Step 4: Simplify right side
    4,425.22x = 7,556,240.29
  5. Step 5: Solve for x
    x = 7,556,240.29/4,425.22
  6. Step 6: Final answer
    x = 1,707.54

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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.