Home / 1,356.45-2,023.71-1,235.36

Finding the Fourth Proportional to 1,356.45, 2,023.71 and 1,235.36

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Solution

The fourth proportional to 1,356.45, 2,023.71 and 1,235.36 is: 1,843.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,356.45 : 2,023.71 = 1,235.36 : x
  2. Step 2: Convert to fraction form
    1,356.45/2,023.71 = 1,235.36/x
  3. Step 3: Cross multiply
    1,356.45x = 2,023.71 × 1,235.36
  4. Step 4: Simplify right side
    1,356.45x = 2,500,000.27
  5. Step 5: Solve for x
    x = 2,500,000.27/1,356.45
  6. Step 6: Final answer
    x = 1,843.05

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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.