Home / 3,219.60-4,442.47-1,893.58

Finding the Fourth Proportional to 3,219.60, 4,442.47 and 1,893.58

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Solution

The fourth proportional to 3,219.60, 4,442.47 and 1,893.58 is: 2,612.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.60 : 4,442.47 = 1,893.58 : x
  2. Step 2: Convert to fraction form
    3,219.60/4,442.47 = 1,893.58/x
  3. Step 3: Cross multiply
    3,219.60x = 4,442.47 × 1,893.58
  4. Step 4: Simplify right side
    3,219.60x = 8,412,172.34
  5. Step 5: Solve for x
    x = 8,412,172.34/3,219.60
  6. Step 6: Final answer
    x = 2,612.80

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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.