Home / 3,065.46-4,230.36-1,668.21

Finding the Fourth Proportional to 3,065.46, 4,230.36 and 1,668.21

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Solution

The fourth proportional to 3,065.46, 4,230.36 and 1,668.21 is: 2,302.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,065.46 : 4,230.36 = 1,668.21 : x
  2. Step 2: Convert to fraction form
    3,065.46/4,230.36 = 1,668.21/x
  3. Step 3: Cross multiply
    3,065.46x = 4,230.36 × 1,668.21
  4. Step 4: Simplify right side
    3,065.46x = 7,057,128.86
  5. Step 5: Solve for x
    x = 7,057,128.86/3,065.46
  6. Step 6: Final answer
    x = 2,302.14

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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.