Home / 3,506.45-4,835.45-2,720.21

Finding the Fourth Proportional to 3,506.45, 4,835.45 and 2,720.21

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Solution

The fourth proportional to 3,506.45, 4,835.45 and 2,720.21 is: 3,751.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,506.45 : 4,835.45 = 2,720.21 : x
  2. Step 2: Convert to fraction form
    3,506.45/4,835.45 = 2,720.21/x
  3. Step 3: Cross multiply
    3,506.45x = 4,835.45 × 2,720.21
  4. Step 4: Simplify right side
    3,506.45x = 13,153,425.84
  5. Step 5: Solve for x
    x = 13,153,425.84/3,506.45
  6. Step 6: Final answer
    x = 3,751.21

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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.