Home / 1,906.18-2,860.19-1,040.47

Finding the Fourth Proportional to 1,906.18, 2,860.19 and 1,040.47

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Solution

The fourth proportional to 1,906.18, 2,860.19 and 1,040.47 is: 1,561.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,906.18 : 2,860.19 = 1,040.47 : x
  2. Step 2: Convert to fraction form
    1,906.18/2,860.19 = 1,040.47/x
  3. Step 3: Cross multiply
    1,906.18x = 2,860.19 × 1,040.47
  4. Step 4: Simplify right side
    1,906.18x = 2,975,933.44
  5. Step 5: Solve for x
    x = 2,975,933.44/1,906.18
  6. Step 6: Final answer
    x = 1,561.20

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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.