Home / 2,945.92-4,063.68-1,840

Finding the Fourth Proportional to 2,945.92, 4,063.68 and 1,840

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Solution

The fourth proportional to 2,945.92, 4,063.68 and 1,840 is: 2,538.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945.92 : 4,063.68 = 1,840 : x
  2. Step 2: Convert to fraction form
    2,945.92/4,063.68 = 1,840/x
  3. Step 3: Cross multiply
    2,945.92x = 4,063.68 × 1,840
  4. Step 4: Simplify right side
    2,945.92x = 7,477,171.20
  5. Step 5: Solve for x
    x = 7,477,171.20/2,945.92
  6. Step 6: Final answer
    x = 2,538.14

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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.