Home / 1,554.87-2,332.31-1,185.51

Finding the Fourth Proportional to 1,554.87, 2,332.31 and 1,185.51

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Solution

The fourth proportional to 1,554.87, 2,332.31 and 1,185.51 is: 1,778.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,554.87 : 2,332.31 = 1,185.51 : x
  2. Step 2: Convert to fraction form
    1,554.87/2,332.31 = 1,185.51/x
  3. Step 3: Cross multiply
    1,554.87x = 2,332.31 × 1,185.51
  4. Step 4: Simplify right side
    1,554.87x = 2,764,970.90
  5. Step 5: Solve for x
    x = 2,764,970.90/1,554.87
  6. Step 6: Final answer
    x = 1,778.27

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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.