Home / 4,987.58-7,467.99-2,790.05

Finding the Fourth Proportional to 4,987.58, 7,467.99 and 2,790.05

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Solution

The fourth proportional to 4,987.58, 7,467.99 and 2,790.05 is: 4,177.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,987.58 : 7,467.99 = 2,790.05 : x
  2. Step 2: Convert to fraction form
    4,987.58/7,467.99 = 2,790.05/x
  3. Step 3: Cross multiply
    4,987.58x = 7,467.99 × 2,790.05
  4. Step 4: Simplify right side
    4,987.58x = 20,836,065.50
  5. Step 5: Solve for x
    x = 20,836,065.50/4,987.58
  6. Step 6: Final answer
    x = 4,177.59

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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.