Home / 1,544.28-2,316.36-518.28

Finding the Fourth Proportional to 1,544.28, 2,316.36 and 518.28

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Solution

The fourth proportional to 1,544.28, 2,316.36 and 518.28 is: 777.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,544.28 : 2,316.36 = 518.28 : x
  2. Step 2: Convert to fraction form
    1,544.28/2,316.36 = 518.28/x
  3. Step 3: Cross multiply
    1,544.28x = 2,316.36 × 518.28
  4. Step 4: Simplify right side
    1,544.28x = 1,200,523.06
  5. Step 5: Solve for x
    x = 1,200,523.06/1,544.28
  6. Step 6: Final answer
    x = 777.40

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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.