Home / 2,880.20-4,319.79-1,031.33

Finding the Fourth Proportional to 2,880.20, 4,319.79 and 1,031.33

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Solution

The fourth proportional to 2,880.20, 4,319.79 and 1,031.33 is: 1,546.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,880.20 : 4,319.79 = 1,031.33 : x
  2. Step 2: Convert to fraction form
    2,880.20/4,319.79 = 1,031.33/x
  3. Step 3: Cross multiply
    2,880.20x = 4,319.79 × 1,031.33
  4. Step 4: Simplify right side
    2,880.20x = 4,455,129.02
  5. Step 5: Solve for x
    x = 4,455,129.02/2,880.20
  6. Step 6: Final answer
    x = 1,546.81

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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.