Home / 4,668.40-6,442.20-2,987.44

Finding the Fourth Proportional to 4,668.40, 6,442.20 and 2,987.44

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Solution

The fourth proportional to 4,668.40, 6,442.20 and 2,987.44 is: 4,122.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,668.40 : 6,442.20 = 2,987.44 : x
  2. Step 2: Convert to fraction form
    4,668.40/6,442.20 = 2,987.44/x
  3. Step 3: Cross multiply
    4,668.40x = 6,442.20 × 2,987.44
  4. Step 4: Simplify right side
    4,668.40x = 19,245,685.97
  5. Step 5: Solve for x
    x = 19,245,685.97/4,668.40
  6. Step 6: Final answer
    x = 4,122.54

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1.5x scale

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.