Home / 3,790.09-5,685.83-1,291.49

Finding the Fourth Proportional to 3,790.09, 5,685.83 and 1,291.49

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Solution

The fourth proportional to 3,790.09, 5,685.83 and 1,291.49 is: 1,937.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,790.09 : 5,685.83 = 1,291.49 : x
  2. Step 2: Convert to fraction form
    3,790.09/5,685.83 = 1,291.49/x
  3. Step 3: Cross multiply
    3,790.09x = 5,685.83 × 1,291.49
  4. Step 4: Simplify right side
    3,790.09x = 7,343,192.59
  5. Step 5: Solve for x
    x = 7,343,192.59/3,790.09
  6. Step 6: Final answer
    x = 1,937.47

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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.