Home / 4,587.44-6,878.64-2,120.90

Finding the Fourth Proportional to 4,587.44, 6,878.64 and 2,120.90

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Solution

The fourth proportional to 4,587.44, 6,878.64 and 2,120.90 is: 3,180.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,587.44 : 6,878.64 = 2,120.90 : x
  2. Step 2: Convert to fraction form
    4,587.44/6,878.64 = 2,120.90/x
  3. Step 3: Cross multiply
    4,587.44x = 6,878.64 × 2,120.90
  4. Step 4: Simplify right side
    4,587.44x = 14,588,907.58
  5. Step 5: Solve for x
    x = 14,588,907.58/4,587.44
  6. Step 6: Final answer
    x = 3,180.18

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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.