Home / 2,908.32-4,015.50-1,790.70

Finding the Fourth Proportional to 2,908.32, 4,015.50 and 1,790.70

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Solution

The fourth proportional to 2,908.32, 4,015.50 and 1,790.70 is: 2,472.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,908.32 : 4,015.50 = 1,790.70 : x
  2. Step 2: Convert to fraction form
    2,908.32/4,015.50 = 1,790.70/x
  3. Step 3: Cross multiply
    2,908.32x = 4,015.50 × 1,790.70
  4. Step 4: Simplify right side
    2,908.32x = 7,190,555.85
  5. Step 5: Solve for x
    x = 7,190,555.85/2,908.32
  6. Step 6: Final answer
    x = 2,472.41

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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.