Home / 4,429.44-6,638.09-4,296.40

Finding the Fourth Proportional to 4,429.44, 6,638.09 and 4,296.40

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Solution

The fourth proportional to 4,429.44, 6,638.09 and 4,296.40 is: 6,438.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,429.44 : 6,638.09 = 4,296.40 : x
  2. Step 2: Convert to fraction form
    4,429.44/6,638.09 = 4,296.40/x
  3. Step 3: Cross multiply
    4,429.44x = 6,638.09 × 4,296.40
  4. Step 4: Simplify right side
    4,429.44x = 28,519,851.80
  5. Step 5: Solve for x
    x = 28,519,851.80/4,429.44
  6. Step 6: Final answer
    x = 6,438.70

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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.