Home / 3,090.86-4,636.98-1,143.06

Finding the Fourth Proportional to 3,090.86, 4,636.98 and 1,143.06

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Solution

The fourth proportional to 3,090.86, 4,636.98 and 1,143.06 is: 1,714.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.86 : 4,636.98 = 1,143.06 : x
  2. Step 2: Convert to fraction form
    3,090.86/4,636.98 = 1,143.06/x
  3. Step 3: Cross multiply
    3,090.86x = 4,636.98 × 1,143.06
  4. Step 4: Simplify right side
    3,090.86x = 5,300,346.36
  5. Step 5: Solve for x
    x = 5,300,346.36/3,090.86
  6. Step 6: Final answer
    x = 1,714.85

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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.