Home / 2,289.62-3,159.88-1,915.94

Finding the Fourth Proportional to 2,289.62, 3,159.88 and 1,915.94

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Solution

The fourth proportional to 2,289.62, 3,159.88 and 1,915.94 is: 2,644.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289.62 : 3,159.88 = 1,915.94 : x
  2. Step 2: Convert to fraction form
    2,289.62/3,159.88 = 1,915.94/x
  3. Step 3: Cross multiply
    2,289.62x = 3,159.88 × 1,915.94
  4. Step 4: Simplify right side
    2,289.62x = 6,054,140.49
  5. Step 5: Solve for x
    x = 6,054,140.49/2,289.62
  6. Step 6: Final answer
    x = 2,644.17

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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.