Home / 2,910.09-4,015.71-1,730.94

Finding the Fourth Proportional to 2,910.09, 4,015.71 and 1,730.94

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Solution

The fourth proportional to 2,910.09, 4,015.71 and 1,730.94 is: 2,388.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910.09 : 4,015.71 = 1,730.94 : x
  2. Step 2: Convert to fraction form
    2,910.09/4,015.71 = 1,730.94/x
  3. Step 3: Cross multiply
    2,910.09x = 4,015.71 × 1,730.94
  4. Step 4: Simplify right side
    2,910.09x = 6,950,953.07
  5. Step 5: Solve for x
    x = 6,950,953.07/2,910.09
  6. Step 6: Final answer
    x = 2,388.57

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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.