Home / 3,114.15-4,297.77-1,788.30

Finding the Fourth Proportional to 3,114.15, 4,297.77 and 1,788.30

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Solution

The fourth proportional to 3,114.15, 4,297.77 and 1,788.30 is: 2,467.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,114.15 : 4,297.77 = 1,788.30 : x
  2. Step 2: Convert to fraction form
    3,114.15/4,297.77 = 1,788.30/x
  3. Step 3: Cross multiply
    3,114.15x = 4,297.77 × 1,788.30
  4. Step 4: Simplify right side
    3,114.15x = 7,685,702.09
  5. Step 5: Solve for x
    x = 7,685,702.09/3,114.15
  6. Step 6: Final answer
    x = 2,467.99

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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.