Home / 1,455.68-2,182.31-1,340.36

Finding the Fourth Proportional to 1,455.68, 2,182.31 and 1,340.36

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Solution

The fourth proportional to 1,455.68, 2,182.31 and 1,340.36 is: 2,009.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455.68 : 2,182.31 = 1,340.36 : x
  2. Step 2: Convert to fraction form
    1,455.68/2,182.31 = 1,340.36/x
  3. Step 3: Cross multiply
    1,455.68x = 2,182.31 × 1,340.36
  4. Step 4: Simplify right side
    1,455.68x = 2,925,074.33
  5. Step 5: Solve for x
    x = 2,925,074.33/1,455.68
  6. Step 6: Final answer
    x = 2,009.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.