Home / 5,273.40-7,913.18-1,986.75

Finding the Fourth Proportional to 5,273.40, 7,913.18 and 1,986.75

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Solution

The fourth proportional to 5,273.40, 7,913.18 and 1,986.75 is: 2,981.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,273.40 : 7,913.18 = 1,986.75 : x
  2. Step 2: Convert to fraction form
    5,273.40/7,913.18 = 1,986.75/x
  3. Step 3: Cross multiply
    5,273.40x = 7,913.18 × 1,986.75
  4. Step 4: Simplify right side
    5,273.40x = 15,721,534.79
  5. Step 5: Solve for x
    x = 15,721,534.79/5,273.40
  6. Step 6: Final answer
    x = 2,981.29

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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.