Home / 3,578.24-4,940.16-2,835.20

Finding the Fourth Proportional to 3,578.24, 4,940.16 and 2,835.20

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Solution

The fourth proportional to 3,578.24, 4,940.16 and 2,835.20 is: 3,914.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,578.24 : 4,940.16 = 2,835.20 : x
  2. Step 2: Convert to fraction form
    3,578.24/4,940.16 = 2,835.20/x
  3. Step 3: Cross multiply
    3,578.24x = 4,940.16 × 2,835.20
  4. Step 4: Simplify right side
    3,578.24x = 14,006,341.63
  5. Step 5: Solve for x
    x = 14,006,341.63/3,578.24
  6. Step 6: Final answer
    x = 3,914.31

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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.