Home / 3,678.81-5,075.35-2,352.30

Finding the Fourth Proportional to 3,678.81, 5,075.35 and 2,352.30

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Solution

The fourth proportional to 3,678.81, 5,075.35 and 2,352.30 is: 3,245.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678.81 : 5,075.35 = 2,352.30 : x
  2. Step 2: Convert to fraction form
    3,678.81/5,075.35 = 2,352.30/x
  3. Step 3: Cross multiply
    3,678.81x = 5,075.35 × 2,352.30
  4. Step 4: Simplify right side
    3,678.81x = 11,938,745.81
  5. Step 5: Solve for x
    x = 11,938,745.81/3,678.81
  6. Step 6: Final answer
    x = 3,245.27

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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.