Home / 2,880.72-4,315.68-1,419.48

Finding the Fourth Proportional to 2,880.72, 4,315.68 and 1,419.48

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Solution

The fourth proportional to 2,880.72, 4,315.68 and 1,419.48 is: 2,126.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,880.72 : 4,315.68 = 1,419.48 : x
  2. Step 2: Convert to fraction form
    2,880.72/4,315.68 = 1,419.48/x
  3. Step 3: Cross multiply
    2,880.72x = 4,315.68 × 1,419.48
  4. Step 4: Simplify right side
    2,880.72x = 6,126,021.45
  5. Step 5: Solve for x
    x = 6,126,021.45/2,880.72
  6. Step 6: Final answer
    x = 2,126.56

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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.