Home / 4,987.22-7,481.16-1,289.48

Finding the Fourth Proportional to 4,987.22, 7,481.16 and 1,289.48

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Solution

The fourth proportional to 4,987.22, 7,481.16 and 1,289.48 is: 1,934.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,987.22 : 7,481.16 = 1,289.48 : x
  2. Step 2: Convert to fraction form
    4,987.22/7,481.16 = 1,289.48/x
  3. Step 3: Cross multiply
    4,987.22x = 7,481.16 × 1,289.48
  4. Step 4: Simplify right side
    4,987.22x = 9,646,768.79
  5. Step 5: Solve for x
    x = 9,646,768.79/4,987.22
  6. Step 6: Final answer
    x = 1,934.30

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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.