Home / 4,090.55-6,135.23-1,316.86

Finding the Fourth Proportional to 4,090.55, 6,135.23 and 1,316.86

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Solution

The fourth proportional to 4,090.55, 6,135.23 and 1,316.86 is: 1,975.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,090.55 : 6,135.23 = 1,316.86 : x
  2. Step 2: Convert to fraction form
    4,090.55/6,135.23 = 1,316.86/x
  3. Step 3: Cross multiply
    4,090.55x = 6,135.23 × 1,316.86
  4. Step 4: Simplify right side
    4,090.55x = 8,079,238.98
  5. Step 5: Solve for x
    x = 8,079,238.98/4,090.55
  6. Step 6: Final answer
    x = 1,975.10

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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.