Home / 2,268.08-3,130.18-1,384.40

Finding the Fourth Proportional to 2,268.08, 3,130.18 and 1,384.40

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Solution

The fourth proportional to 2,268.08, 3,130.18 and 1,384.40 is: 1,910.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,268.08 : 3,130.18 = 1,384.40 : x
  2. Step 2: Convert to fraction form
    2,268.08/3,130.18 = 1,384.40/x
  3. Step 3: Cross multiply
    2,268.08x = 3,130.18 × 1,384.40
  4. Step 4: Simplify right side
    2,268.08x = 4,333,425.56
  5. Step 5: Solve for x
    x = 4,333,425.56/2,268.08
  6. Step 6: Final answer
    x = 1,910.62

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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.