Home / 3,470.09-4,788.84-1,977.99

Finding the Fourth Proportional to 3,470.09, 4,788.84 and 1,977.99

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Solution

The fourth proportional to 3,470.09, 4,788.84 and 1,977.99 is: 2,729.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,470.09 : 4,788.84 = 1,977.99 : x
  2. Step 2: Convert to fraction form
    3,470.09/4,788.84 = 1,977.99/x
  3. Step 3: Cross multiply
    3,470.09x = 4,788.84 × 1,977.99
  4. Step 4: Simplify right side
    3,470.09x = 9,472,255.96
  5. Step 5: Solve for x
    x = 9,472,255.96/3,470.09
  6. Step 6: Final answer
    x = 2,729.69

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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.