Home / 4,090.80-6,135.62-1,317.11

Finding the Fourth Proportional to 4,090.80, 6,135.62 and 1,317.11

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Solution

The fourth proportional to 4,090.80, 6,135.62 and 1,317.11 is: 1,975.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,090.80 : 6,135.62 = 1,317.11 : x
  2. Step 2: Convert to fraction form
    4,090.80/6,135.62 = 1,317.11/x
  3. Step 3: Cross multiply
    4,090.80x = 6,135.62 × 1,317.11
  4. Step 4: Simplify right side
    4,090.80x = 8,081,249.19
  5. Step 5: Solve for x
    x = 8,081,249.19/4,090.80
  6. Step 6: Final answer
    x = 1,975.47

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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.