Home / 5,407.89-8,112.98-1,898.43

Finding the Fourth Proportional to 5,407.89, 8,112.98 and 1,898.43

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Solution

The fourth proportional to 5,407.89, 8,112.98 and 1,898.43 is: 2,848.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,407.89 : 8,112.98 = 1,898.43 : x
  2. Step 2: Convert to fraction form
    5,407.89/8,112.98 = 1,898.43/x
  3. Step 3: Cross multiply
    5,407.89x = 8,112.98 × 1,898.43
  4. Step 4: Simplify right side
    5,407.89x = 15,401,924.62
  5. Step 5: Solve for x
    x = 15,401,924.62/5,407.89
  6. Step 6: Final answer
    x = 2,848.05

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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.