Home / 2,868.49-3,957.58-1,673.21

Finding the Fourth Proportional to 2,868.49, 3,957.58 and 1,673.21

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Solution

The fourth proportional to 2,868.49, 3,957.58 and 1,673.21 is: 2,308.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,868.49 : 3,957.58 = 1,673.21 : x
  2. Step 2: Convert to fraction form
    2,868.49/3,957.58 = 1,673.21/x
  3. Step 3: Cross multiply
    2,868.49x = 3,957.58 × 1,673.21
  4. Step 4: Simplify right side
    2,868.49x = 6,621,838.46
  5. Step 5: Solve for x
    x = 6,621,838.46/2,868.49
  6. Step 6: Final answer
    x = 2,308.48

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1.5x scale

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.