Home / 5,408.80-8,113.28-1,512.96

Finding the Fourth Proportional to 5,408.80, 8,113.28 and 1,512.96

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Solution

The fourth proportional to 5,408.80, 8,113.28 and 1,512.96 is: 2,269.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,408.80 : 8,113.28 = 1,512.96 : x
  2. Step 2: Convert to fraction form
    5,408.80/8,113.28 = 1,512.96/x
  3. Step 3: Cross multiply
    5,408.80x = 8,113.28 × 1,512.96
  4. Step 4: Simplify right side
    5,408.80x = 12,275,068.11
  5. Step 5: Solve for x
    x = 12,275,068.11/5,408.80
  6. Step 6: Final answer
    x = 2,269.46

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1.5x scale

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.