Home / 1,915.63-2,641.99-1,617.57

Finding the Fourth Proportional to 1,915.63, 2,641.99 and 1,617.57

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Solution

The fourth proportional to 1,915.63, 2,641.99 and 1,617.57 is: 2,230.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915.63 : 2,641.99 = 1,617.57 : x
  2. Step 2: Convert to fraction form
    1,915.63/2,641.99 = 1,617.57/x
  3. Step 3: Cross multiply
    1,915.63x = 2,641.99 × 1,617.57
  4. Step 4: Simplify right side
    1,915.63x = 4,273,602.75
  5. Step 5: Solve for x
    x = 4,273,602.75/1,915.63
  6. Step 6: Final answer
    x = 2,230.91

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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.