Home / 3,180.36-4,388.20-3,075.48

Finding the Fourth Proportional to 3,180.36, 4,388.20 and 3,075.48

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Solution

The fourth proportional to 3,180.36, 4,388.20 and 3,075.48 is: 4,243.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.36 : 4,388.20 = 3,075.48 : x
  2. Step 2: Convert to fraction form
    3,180.36/4,388.20 = 3,075.48/x
  3. Step 3: Cross multiply
    3,180.36x = 4,388.20 × 3,075.48
  4. Step 4: Simplify right side
    3,180.36x = 13,495,821.34
  5. Step 5: Solve for x
    x = 13,495,821.34/3,180.36
  6. Step 6: Final answer
    x = 4,243.49

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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.