Home / 4,090.30-6,134.86-1,316.61

Finding the Fourth Proportional to 4,090.30, 6,134.86 and 1,316.61

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Solution

The fourth proportional to 4,090.30, 6,134.86 and 1,316.61 is: 1,974.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,090.30 : 6,134.86 = 1,316.61 : x
  2. Step 2: Convert to fraction form
    4,090.30/6,134.86 = 1,316.61/x
  3. Step 3: Cross multiply
    4,090.30x = 6,134.86 × 1,316.61
  4. Step 4: Simplify right side
    4,090.30x = 8,077,218.02
  5. Step 5: Solve for x
    x = 8,077,218.02/4,090.30
  6. Step 6: Final answer
    x = 1,974.73

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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.