Home / 2,117.51-3,169.37-1,915.41

Finding the Fourth Proportional to 2,117.51, 3,169.37 and 1,915.41

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Solution

The fourth proportional to 2,117.51, 3,169.37 and 1,915.41 is: 2,866.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117.51 : 3,169.37 = 1,915.41 : x
  2. Step 2: Convert to fraction form
    2,117.51/3,169.37 = 1,915.41/x
  3. Step 3: Cross multiply
    2,117.51x = 3,169.37 × 1,915.41
  4. Step 4: Simplify right side
    2,117.51x = 6,070,642.99
  5. Step 5: Solve for x
    x = 6,070,642.99/2,117.51
  6. Step 6: Final answer
    x = 2,866.88

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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.