Home / 1,926.90-2,659.37-1,087.65

Finding the Fourth Proportional to 1,926.90, 2,659.37 and 1,087.65

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Solution

The fourth proportional to 1,926.90, 2,659.37 and 1,087.65 is: 1,501.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,926.90 : 2,659.37 = 1,087.65 : x
  2. Step 2: Convert to fraction form
    1,926.90/2,659.37 = 1,087.65/x
  3. Step 3: Cross multiply
    1,926.90x = 2,659.37 × 1,087.65
  4. Step 4: Simplify right side
    1,926.90x = 2,892,458.34
  5. Step 5: Solve for x
    x = 2,892,458.34/1,926.90
  6. Step 6: Final answer
    x = 1,501.09

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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.