Home / 1,666.37-2,299.60-1,003.66

Finding the Fourth Proportional to 1,666.37, 2,299.60 and 1,003.66

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Solution

The fourth proportional to 1,666.37, 2,299.60 and 1,003.66 is: 1,385.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,666.37 : 2,299.60 = 1,003.66 : x
  2. Step 2: Convert to fraction form
    1,666.37/2,299.60 = 1,003.66/x
  3. Step 3: Cross multiply
    1,666.37x = 2,299.60 × 1,003.66
  4. Step 4: Simplify right side
    1,666.37x = 2,308,020.67
  5. Step 5: Solve for x
    x = 2,308,020.67/1,666.37
  6. Step 6: Final answer
    x = 1,385.06

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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.