Home / 1,356.92-2,025.64-1,260.56

Finding the Fourth Proportional to 1,356.92, 2,025.64 and 1,260.56

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Solution

The fourth proportional to 1,356.92, 2,025.64 and 1,260.56 is: 1,881.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,356.92 : 2,025.64 = 1,260.56 : x
  2. Step 2: Convert to fraction form
    1,356.92/2,025.64 = 1,260.56/x
  3. Step 3: Cross multiply
    1,356.92x = 2,025.64 × 1,260.56
  4. Step 4: Simplify right side
    1,356.92x = 2,553,447.40
  5. Step 5: Solve for x
    x = 2,553,447.40/1,356.92
  6. Step 6: Final answer
    x = 1,881.80

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.