Home / 3,102.40-4,281.26-1,776.03

Finding the Fourth Proportional to 3,102.40, 4,281.26 and 1,776.03

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Solution

The fourth proportional to 3,102.40, 4,281.26 and 1,776.03 is: 2,450.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,102.40 : 4,281.26 = 1,776.03 : x
  2. Step 2: Convert to fraction form
    3,102.40/4,281.26 = 1,776.03/x
  3. Step 3: Cross multiply
    3,102.40x = 4,281.26 × 1,776.03
  4. Step 4: Simplify right side
    3,102.40x = 7,603,621.26
  5. Step 5: Solve for x
    x = 7,603,621.26/3,102.40
  6. Step 6: Final answer
    x = 2,450.88

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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.