Home / 2,738.51-3,778.13-1,899.96

Finding the Fourth Proportional to 2,738.51, 3,778.13 and 1,899.96

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Solution

The fourth proportional to 2,738.51, 3,778.13 and 1,899.96 is: 2,621.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,738.51 : 3,778.13 = 1,899.96 : x
  2. Step 2: Convert to fraction form
    2,738.51/3,778.13 = 1,899.96/x
  3. Step 3: Cross multiply
    2,738.51x = 3,778.13 × 1,899.96
  4. Step 4: Simplify right side
    2,738.51x = 7,178,275.77
  5. Step 5: Solve for x
    x = 7,178,275.77/2,738.51
  6. Step 6: Final answer
    x = 2,621.24

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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.