Home / 3,470.11-4,788.75-1,898.21

Finding the Fourth Proportional to 3,470.11, 4,788.75 and 1,898.21

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Solution

The fourth proportional to 3,470.11, 4,788.75 and 1,898.21 is: 2,619.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,470.11 : 4,788.75 = 1,898.21 : x
  2. Step 2: Convert to fraction form
    3,470.11/4,788.75 = 1,898.21/x
  3. Step 3: Cross multiply
    3,470.11x = 4,788.75 × 1,898.21
  4. Step 4: Simplify right side
    3,470.11x = 9,090,019.70
  5. Step 5: Solve for x
    x = 9,090,019.70/3,470.11
  6. Step 6: Final answer
    x = 2,619.52

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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.