Home / 1,860.09-2,790.60-936.15

Finding the Fourth Proportional to 1,860.09, 2,790.60 and 936.15

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Solution

The fourth proportional to 1,860.09, 2,790.60 and 936.15 is: 1,404.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,860.09 : 2,790.60 = 936.15 : x
  2. Step 2: Convert to fraction form
    1,860.09/2,790.60 = 936.15/x
  3. Step 3: Cross multiply
    1,860.09x = 2,790.60 × 936.15
  4. Step 4: Simplify right side
    1,860.09x = 2,612,420.19
  5. Step 5: Solve for x
    x = 2,612,420.19/1,860.09
  6. Step 6: Final answer
    x = 1,404.46

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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.