Home / 3,066.09-4,230.87-1,807.05

Finding the Fourth Proportional to 3,066.09, 4,230.87 and 1,807.05

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Solution

The fourth proportional to 3,066.09, 4,230.87 and 1,807.05 is: 2,493.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,066.09 : 4,230.87 = 1,807.05 : x
  2. Step 2: Convert to fraction form
    3,066.09/4,230.87 = 1,807.05/x
  3. Step 3: Cross multiply
    3,066.09x = 4,230.87 × 1,807.05
  4. Step 4: Simplify right side
    3,066.09x = 7,645,393.63
  5. Step 5: Solve for x
    x = 7,645,393.63/3,066.09
  6. Step 6: Final answer
    x = 2,493.53

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Half scale
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Double scale
Find fourth proportional to 3,067.09, 4,232.25 and 1,808.05
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.