Home / 1,458.33-2,011.84-986.07

Finding the Fourth Proportional to 1,458.33, 2,011.84 and 986.07

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Solution

The fourth proportional to 1,458.33, 2,011.84 and 986.07 is: 1,360.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,458.33 : 2,011.84 = 986.07 : x
  2. Step 2: Convert to fraction form
    1,458.33/2,011.84 = 986.07/x
  3. Step 3: Cross multiply
    1,458.33x = 2,011.84 × 986.07
  4. Step 4: Simplify right side
    1,458.33x = 1,983,815.07
  5. Step 5: Solve for x
    x = 1,983,815.07/1,458.33
  6. Step 6: Final answer
    x = 1,360.33

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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.