Home / 2,915.07-4,021.89-1,656.03

Finding the Fourth Proportional to 2,915.07, 4,021.89 and 1,656.03

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Solution

The fourth proportional to 2,915.07, 4,021.89 and 1,656.03 is: 2,284.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.07 : 4,021.89 = 1,656.03 : x
  2. Step 2: Convert to fraction form
    2,915.07/4,021.89 = 1,656.03/x
  3. Step 3: Cross multiply
    2,915.07x = 4,021.89 × 1,656.03
  4. Step 4: Simplify right side
    2,915.07x = 6,660,370.50
  5. Step 5: Solve for x
    x = 6,660,370.50/2,915.07
  6. Step 6: Final answer
    x = 2,284.81

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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.