Home / 2,230.21-3,077.58-1,345.87

Finding the Fourth Proportional to 2,230.21, 3,077.58 and 1,345.87

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Solution

The fourth proportional to 2,230.21, 3,077.58 and 1,345.87 is: 1,857.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,230.21 : 3,077.58 = 1,345.87 : x
  2. Step 2: Convert to fraction form
    2,230.21/3,077.58 = 1,345.87/x
  3. Step 3: Cross multiply
    2,230.21x = 3,077.58 × 1,345.87
  4. Step 4: Simplify right side
    2,230.21x = 4,142,022.59
  5. Step 5: Solve for x
    x = 4,142,022.59/2,230.21
  6. Step 6: Final answer
    x = 1,857.23

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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.