Home / 2,936.79-4,053.38-1,677.78

Finding the Fourth Proportional to 2,936.79, 4,053.38 and 1,677.78

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Solution

The fourth proportional to 2,936.79, 4,053.38 and 1,677.78 is: 2,315.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,936.79 : 4,053.38 = 1,677.78 : x
  2. Step 2: Convert to fraction form
    2,936.79/4,053.38 = 1,677.78/x
  3. Step 3: Cross multiply
    2,936.79x = 4,053.38 × 1,677.78
  4. Step 4: Simplify right side
    2,936.79x = 6,800,671.51
  5. Step 5: Solve for x
    x = 6,800,671.51/2,936.79
  6. Step 6: Final answer
    x = 2,315.68

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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.