Home / 2,575.70-3,556.62-1,915.49

Finding the Fourth Proportional to 2,575.70, 3,556.62 and 1,915.49

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Solution

The fourth proportional to 2,575.70, 3,556.62 and 1,915.49 is: 2,644.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,575.70 : 3,556.62 = 1,915.49 : x
  2. Step 2: Convert to fraction form
    2,575.70/3,556.62 = 1,915.49/x
  3. Step 3: Cross multiply
    2,575.70x = 3,556.62 × 1,915.49
  4. Step 4: Simplify right side
    2,575.70x = 6,812,660.47
  5. Step 5: Solve for x
    x = 6,812,660.47/2,575.70
  6. Step 6: Final answer
    x = 2,644.98

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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.