Home / 1,915.26-2,858.33-1,866.05

Finding the Fourth Proportional to 1,915.26, 2,858.33 and 1,866.05

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Solution

The fourth proportional to 1,915.26, 2,858.33 and 1,866.05 is: 2,784.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915.26 : 2,858.33 = 1,866.05 : x
  2. Step 2: Convert to fraction form
    1,915.26/2,858.33 = 1,866.05/x
  3. Step 3: Cross multiply
    1,915.26x = 2,858.33 × 1,866.05
  4. Step 4: Simplify right side
    1,915.26x = 5,333,803.87
  5. Step 5: Solve for x
    x = 5,333,803.87/1,915.26
  6. Step 6: Final answer
    x = 2,784.90

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.