Home / 1,540.67-2,124.93-1,008.96

Finding the Fourth Proportional to 1,540.67, 2,124.93 and 1,008.96

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Solution

The fourth proportional to 1,540.67, 2,124.93 and 1,008.96 is: 1,391.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,540.67 : 2,124.93 = 1,008.96 : x
  2. Step 2: Convert to fraction form
    1,540.67/2,124.93 = 1,008.96/x
  3. Step 3: Cross multiply
    1,540.67x = 2,124.93 × 1,008.96
  4. Step 4: Simplify right side
    1,540.67x = 2,143,969.37
  5. Step 5: Solve for x
    x = 2,143,969.37/1,540.67
  6. Step 6: Final answer
    x = 1,391.59

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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.