Home / 3,315.69-4,575.77-1,899.39

Finding the Fourth Proportional to 3,315.69, 4,575.77 and 1,899.39

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Solution

The fourth proportional to 3,315.69, 4,575.77 and 1,899.39 is: 2,621.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.69 : 4,575.77 = 1,899.39 : x
  2. Step 2: Convert to fraction form
    3,315.69/4,575.77 = 1,899.39/x
  3. Step 3: Cross multiply
    3,315.69x = 4,575.77 × 1,899.39
  4. Step 4: Simplify right side
    3,315.69x = 8,691,171.78
  5. Step 5: Solve for x
    x = 8,691,171.78/3,315.69
  6. Step 6: Final answer
    x = 2,621.23

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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.