Home / 2,945.30-4,064.52-1,686.37

Finding the Fourth Proportional to 2,945.30, 4,064.52 and 1,686.37

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Solution

The fourth proportional to 2,945.30, 4,064.52 and 1,686.37 is: 2,327.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945.30 : 4,064.52 = 1,686.37 : x
  2. Step 2: Convert to fraction form
    2,945.30/4,064.52 = 1,686.37/x
  3. Step 3: Cross multiply
    2,945.30x = 4,064.52 × 1,686.37
  4. Step 4: Simplify right side
    2,945.30x = 6,854,286.51
  5. Step 5: Solve for x
    x = 6,854,286.51/2,945.30
  6. Step 6: Final answer
    x = 2,327.20

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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.