Home / 3,868.09-5,802.99-1,236.40

Finding the Fourth Proportional to 3,868.09, 5,802.99 and 1,236.40

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Solution

The fourth proportional to 3,868.09, 5,802.99 and 1,236.40 is: 1,854.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,868.09 : 5,802.99 = 1,236.40 : x
  2. Step 2: Convert to fraction form
    3,868.09/5,802.99 = 1,236.40/x
  3. Step 3: Cross multiply
    3,868.09x = 5,802.99 × 1,236.40
  4. Step 4: Simplify right side
    3,868.09x = 7,174,816.84
  5. Step 5: Solve for x
    x = 7,174,816.84/3,868.09
  6. Step 6: Final answer
    x = 1,854.87

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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.