Home / 2,837.56-3,915.74-1,578.57

Finding the Fourth Proportional to 2,837.56, 3,915.74 and 1,578.57

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Solution

The fourth proportional to 2,837.56, 3,915.74 and 1,578.57 is: 2,178.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,837.56 : 3,915.74 = 1,578.57 : x
  2. Step 2: Convert to fraction form
    2,837.56/3,915.74 = 1,578.57/x
  3. Step 3: Cross multiply
    2,837.56x = 3,915.74 × 1,578.57
  4. Step 4: Simplify right side
    2,837.56x = 6,181,262.73
  5. Step 5: Solve for x
    x = 6,181,262.73/2,837.56
  6. Step 6: Final answer
    x = 2,178.38

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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.