Home / 5,915.90-8,871.26-2,215.54

Finding the Fourth Proportional to 5,915.90, 8,871.26 and 2,215.54

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Solution

The fourth proportional to 5,915.90, 8,871.26 and 2,215.54 is: 3,322.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,915.90 : 8,871.26 = 2,215.54 : x
  2. Step 2: Convert to fraction form
    5,915.90/8,871.26 = 2,215.54/x
  3. Step 3: Cross multiply
    5,915.90x = 8,871.26 × 2,215.54
  4. Step 4: Simplify right side
    5,915.90x = 19,654,597.07
  5. Step 5: Solve for x
    x = 19,654,597.07/5,915.90
  6. Step 6: Final answer
    x = 3,322.33

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1.5x scale

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.