Home / 3,506.80-5,255.70-1,653.88

Finding the Fourth Proportional to 3,506.80, 5,255.70 and 1,653.88

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Solution

The fourth proportional to 3,506.80, 5,255.70 and 1,653.88 is: 2,478.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,506.80 : 5,255.70 = 1,653.88 : x
  2. Step 2: Convert to fraction form
    3,506.80/5,255.70 = 1,653.88/x
  3. Step 3: Cross multiply
    3,506.80x = 5,255.70 × 1,653.88
  4. Step 4: Simplify right side
    3,506.80x = 8,692,297.12
  5. Step 5: Solve for x
    x = 8,692,297.12/3,506.80
  6. Step 6: Final answer
    x = 2,478.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.