Home / 3,038.49-4,192.09-2,477.98

Finding the Fourth Proportional to 3,038.49, 4,192.09 and 2,477.98

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Solution

The fourth proportional to 3,038.49, 4,192.09 and 2,477.98 is: 3,418.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,038.49 : 4,192.09 = 2,477.98 : x
  2. Step 2: Convert to fraction form
    3,038.49/4,192.09 = 2,477.98/x
  3. Step 3: Cross multiply
    3,038.49x = 4,192.09 × 2,477.98
  4. Step 4: Simplify right side
    3,038.49x = 10,387,914.22
  5. Step 5: Solve for x
    x = 10,387,914.22/3,038.49
  6. Step 6: Final answer
    x = 3,418.78

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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.