Home / 4,435.78-6,642.74-2,788.24

Finding the Fourth Proportional to 4,435.78, 6,642.74 and 2,788.24

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Solution

The fourth proportional to 4,435.78, 6,642.74 and 2,788.24 is: 4,175.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,435.78 : 6,642.74 = 2,788.24 : x
  2. Step 2: Convert to fraction form
    4,435.78/6,642.74 = 2,788.24/x
  3. Step 3: Cross multiply
    4,435.78x = 6,642.74 × 2,788.24
  4. Step 4: Simplify right side
    4,435.78x = 18,521,539.44
  5. Step 5: Solve for x
    x = 18,521,539.44/4,435.78
  6. Step 6: Final answer
    x = 4,175.49

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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.