Home / 1,880.80-2,819.95-1,002.75

Finding the Fourth Proportional to 1,880.80, 2,819.95 and 1,002.75

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Solution

The fourth proportional to 1,880.80, 2,819.95 and 1,002.75 is: 1,503.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,880.80 : 2,819.95 = 1,002.75 : x
  2. Step 2: Convert to fraction form
    1,880.80/2,819.95 = 1,002.75/x
  3. Step 3: Cross multiply
    1,880.80x = 2,819.95 × 1,002.75
  4. Step 4: Simplify right side
    1,880.80x = 2,827,704.86
  5. Step 5: Solve for x
    x = 2,827,704.86/1,880.80
  6. Step 6: Final answer
    x = 1,503.46

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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.