Home / 2,910.22-4,014.04-1,915.18

Finding the Fourth Proportional to 2,910.22, 4,014.04 and 1,915.18

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Solution

The fourth proportional to 2,910.22, 4,014.04 and 1,915.18 is: 2,641.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910.22 : 4,014.04 = 1,915.18 : x
  2. Step 2: Convert to fraction form
    2,910.22/4,014.04 = 1,915.18/x
  3. Step 3: Cross multiply
    2,910.22x = 4,014.04 × 1,915.18
  4. Step 4: Simplify right side
    2,910.22x = 7,687,609.13
  5. Step 5: Solve for x
    x = 7,687,609.13/2,910.22
  6. Step 6: Final answer
    x = 2,641.59

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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.