Home / 5,408.10-8,113.50-1,512.47

Finding the Fourth Proportional to 5,408.10, 8,113.50 and 1,512.47

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Solution

The fourth proportional to 5,408.10, 8,113.50 and 1,512.47 is: 2,269.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,408.10 : 8,113.50 = 1,512.47 : x
  2. Step 2: Convert to fraction form
    5,408.10/8,113.50 = 1,512.47/x
  3. Step 3: Cross multiply
    5,408.10x = 8,113.50 × 1,512.47
  4. Step 4: Simplify right side
    5,408.10x = 12,271,445.63
  5. Step 5: Solve for x
    x = 12,271,445.63/5,408.10
  6. Step 6: Final answer
    x = 2,269.09

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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.