Home / 1,880.09-2,820.10-581.52

Finding the Fourth Proportional to 1,880.09, 2,820.10 and 581.52

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Solution

The fourth proportional to 1,880.09, 2,820.10 and 581.52 is: 872.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,880.09 : 2,820.10 = 581.52 : x
  2. Step 2: Convert to fraction form
    1,880.09/2,820.10 = 581.52/x
  3. Step 3: Cross multiply
    1,880.09x = 2,820.10 × 581.52
  4. Step 4: Simplify right side
    1,880.09x = 1,639,944.55
  5. Step 5: Solve for x
    x = 1,639,944.55/1,880.09
  6. Step 6: Final answer
    x = 872.27

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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.