Home / 2,785.88-3,844.40-1,666.17

Finding the Fourth Proportional to 2,785.88, 3,844.40 and 1,666.17

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Solution

The fourth proportional to 2,785.88, 3,844.40 and 1,666.17 is: 2,299.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,785.88 : 3,844.40 = 1,666.17 : x
  2. Step 2: Convert to fraction form
    2,785.88/3,844.40 = 1,666.17/x
  3. Step 3: Cross multiply
    2,785.88x = 3,844.40 × 1,666.17
  4. Step 4: Simplify right side
    2,785.88x = 6,405,415.62
  5. Step 5: Solve for x
    x = 6,405,415.62/2,785.88
  6. Step 6: Final answer
    x = 2,299.24

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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.