Home / 1,948.31-2,915.46-1,817.96

Finding the Fourth Proportional to 1,948.31, 2,915.46 and 1,817.96

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Solution

The fourth proportional to 1,948.31, 2,915.46 and 1,817.96 is: 2,720.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948.31 : 2,915.46 = 1,817.96 : x
  2. Step 2: Convert to fraction form
    1,948.31/2,915.46 = 1,817.96/x
  3. Step 3: Cross multiply
    1,948.31x = 2,915.46 × 1,817.96
  4. Step 4: Simplify right side
    1,948.31x = 5,300,175.08
  5. Step 5: Solve for x
    x = 5,300,175.08/1,948.31
  6. Step 6: Final answer
    x = 2,720.40

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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.