Home / 3,470-4,788.60-1,898.11

Finding the Fourth Proportional to 3,470, 4,788.60 and 1,898.11

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Solution

The fourth proportional to 3,470, 4,788.60 and 1,898.11 is: 2,619.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,470 : 4,788.60 = 1,898.11 : x
  2. Step 2: Convert to fraction form
    3,470/4,788.60 = 1,898.11/x
  3. Step 3: Cross multiply
    3,470x = 4,788.60 × 1,898.11
  4. Step 4: Simplify right side
    3,470x = 9,089,289.55
  5. Step 5: Solve for x
    x = 9,089,289.55/3,470
  6. Step 6: Final answer
    x = 2,619.39

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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.