Home / 2,868.08-3,957.90-1,609.14

Finding the Fourth Proportional to 2,868.08, 3,957.90 and 1,609.14

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Solution

The fourth proportional to 2,868.08, 3,957.90 and 1,609.14 is: 2,220.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,868.08 : 3,957.90 = 1,609.14 : x
  2. Step 2: Convert to fraction form
    2,868.08/3,957.90 = 1,609.14/x
  3. Step 3: Cross multiply
    2,868.08x = 3,957.90 × 1,609.14
  4. Step 4: Simplify right side
    2,868.08x = 6,368,815.21
  5. Step 5: Solve for x
    x = 6,368,815.21/2,868.08
  6. Step 6: Final answer
    x = 2,220.58

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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.