Home / 2,839.58-3,918.57-1,580.69

Finding the Fourth Proportional to 2,839.58, 3,918.57 and 1,580.69

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Solution

The fourth proportional to 2,839.58, 3,918.57 and 1,580.69 is: 2,181.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,839.58 : 3,918.57 = 1,580.69 : x
  2. Step 2: Convert to fraction form
    2,839.58/3,918.57 = 1,580.69/x
  3. Step 3: Cross multiply
    2,839.58x = 3,918.57 × 1,580.69
  4. Step 4: Simplify right side
    2,839.58x = 6,194,024.82
  5. Step 5: Solve for x
    x = 6,194,024.82/2,839.58
  6. Step 6: Final answer
    x = 2,181.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.