Home / 2,814.17-3,883.52-1,555.29

Finding the Fourth Proportional to 2,814.17, 3,883.52 and 1,555.29

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Solution

The fourth proportional to 2,814.17, 3,883.52 and 1,555.29 is: 2,146.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,814.17 : 3,883.52 = 1,555.29 : x
  2. Step 2: Convert to fraction form
    2,814.17/3,883.52 = 1,555.29/x
  3. Step 3: Cross multiply
    2,814.17x = 3,883.52 × 1,555.29
  4. Step 4: Simplify right side
    2,814.17x = 6,039,992.04
  5. Step 5: Solve for x
    x = 6,039,992.04/2,814.17
  6. Step 6: Final answer
    x = 2,146.28

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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.