Home / 2,476.86-3,421.78-1,628.14

Finding the Fourth Proportional to 2,476.86, 3,421.78 and 1,628.14

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Solution

The fourth proportional to 2,476.86, 3,421.78 and 1,628.14 is: 2,249.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,476.86 : 3,421.78 = 1,628.14 : x
  2. Step 2: Convert to fraction form
    2,476.86/3,421.78 = 1,628.14/x
  3. Step 3: Cross multiply
    2,476.86x = 3,421.78 × 1,628.14
  4. Step 4: Simplify right side
    2,476.86x = 5,571,119.78
  5. Step 5: Solve for x
    x = 5,571,119.78/2,476.86
  6. Step 6: Final answer
    x = 2,249.27

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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.