Home / 3,090.98-4,636.20-1,143.20

Finding the Fourth Proportional to 3,090.98, 4,636.20 and 1,143.20

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Solution

The fourth proportional to 3,090.98, 4,636.20 and 1,143.20 is: 1,714.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.98 : 4,636.20 = 1,143.20 : x
  2. Step 2: Convert to fraction form
    3,090.98/4,636.20 = 1,143.20/x
  3. Step 3: Cross multiply
    3,090.98x = 4,636.20 × 1,143.20
  4. Step 4: Simplify right side
    3,090.98x = 5,300,103.84
  5. Step 5: Solve for x
    x = 5,300,103.84/3,090.98
  6. Step 6: Final answer
    x = 1,714.70

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1.5x scale

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.