Home / 2,555.16-3,828.27-1,820.91

Finding the Fourth Proportional to 2,555.16, 3,828.27 and 1,820.91

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Solution

The fourth proportional to 2,555.16, 3,828.27 and 1,820.91 is: 2,728.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,555.16 : 3,828.27 = 1,820.91 : x
  2. Step 2: Convert to fraction form
    2,555.16/3,828.27 = 1,820.91/x
  3. Step 3: Cross multiply
    2,555.16x = 3,828.27 × 1,820.91
  4. Step 4: Simplify right side
    2,555.16x = 6,970,935.13
  5. Step 5: Solve for x
    x = 6,970,935.13/2,555.16
  6. Step 6: Final answer
    x = 2,728.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.