Home / 2,900.61-4,351.05-1,915.38

Finding the Fourth Proportional to 2,900.61, 4,351.05 and 1,915.38

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Solution

The fourth proportional to 2,900.61, 4,351.05 and 1,915.38 is: 2,873.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,900.61 : 4,351.05 = 1,915.38 : x
  2. Step 2: Convert to fraction form
    2,900.61/4,351.05 = 1,915.38/x
  3. Step 3: Cross multiply
    2,900.61x = 4,351.05 × 1,915.38
  4. Step 4: Simplify right side
    2,900.61x = 8,333,914.15
  5. Step 5: Solve for x
    x = 8,333,914.15/2,900.61
  6. Step 6: Final answer
    x = 2,873.16

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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.