Home / 1,360.28-2,040.50-386.46

Finding the Fourth Proportional to 1,360.28, 2,040.50 and 386.46

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Solution

The fourth proportional to 1,360.28, 2,040.50 and 386.46 is: 579.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,360.28 : 2,040.50 = 386.46 : x
  2. Step 2: Convert to fraction form
    1,360.28/2,040.50 = 386.46/x
  3. Step 3: Cross multiply
    1,360.28x = 2,040.50 × 386.46
  4. Step 4: Simplify right side
    1,360.28x = 788,571.63
  5. Step 5: Solve for x
    x = 788,571.63/1,360.28
  6. Step 6: Final answer
    x = 579.71

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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.