Home / 3,578.55-4,939.47-2,319.68

Finding the Fourth Proportional to 3,578.55, 4,939.47 and 2,319.68

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Solution

The fourth proportional to 3,578.55, 4,939.47 and 2,319.68 is: 3,201.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,578.55 : 4,939.47 = 2,319.68 : x
  2. Step 2: Convert to fraction form
    3,578.55/4,939.47 = 2,319.68/x
  3. Step 3: Cross multiply
    3,578.55x = 4,939.47 × 2,319.68
  4. Step 4: Simplify right side
    3,578.55x = 11,457,965.07
  5. Step 5: Solve for x
    x = 11,457,965.07/3,578.55
  6. Step 6: Final answer
    x = 3,201.85

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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.