Home / 4,987.89-7,481.61-1,477.74

Finding the Fourth Proportional to 4,987.89, 7,481.61 and 1,477.74

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Solution

The fourth proportional to 4,987.89, 7,481.61 and 1,477.74 is: 2,216.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,987.89 : 7,481.61 = 1,477.74 : x
  2. Step 2: Convert to fraction form
    4,987.89/7,481.61 = 1,477.74/x
  3. Step 3: Cross multiply
    4,987.89x = 7,481.61 × 1,477.74
  4. Step 4: Simplify right side
    4,987.89x = 11,055,874.36
  5. Step 5: Solve for x
    x = 11,055,874.36/4,987.89
  6. Step 6: Final answer
    x = 2,216.54

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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.