Home / 2,868.23-3,957.45-1,672.49

Finding the Fourth Proportional to 2,868.23, 3,957.45 and 1,672.49

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Solution

The fourth proportional to 2,868.23, 3,957.45 and 1,672.49 is: 2,307.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,868.23 : 3,957.45 = 1,672.49 : x
  2. Step 2: Convert to fraction form
    2,868.23/3,957.45 = 1,672.49/x
  3. Step 3: Cross multiply
    2,868.23x = 3,957.45 × 1,672.49
  4. Step 4: Simplify right side
    2,868.23x = 6,618,795.55
  5. Step 5: Solve for x
    x = 6,618,795.55/2,868.23
  6. Step 6: Final answer
    x = 2,307.62

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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.