Home / 5,451.58-8,178.72-1,555.96

Finding the Fourth Proportional to 5,451.58, 8,178.72 and 1,555.96

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Solution

The fourth proportional to 5,451.58, 8,178.72 and 1,555.96 is: 2,334.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,451.58 : 8,178.72 = 1,555.96 : x
  2. Step 2: Convert to fraction form
    5,451.58/8,178.72 = 1,555.96/x
  3. Step 3: Cross multiply
    5,451.58x = 8,178.72 × 1,555.96
  4. Step 4: Simplify right side
    5,451.58x = 12,725,761.17
  5. Step 5: Solve for x
    x = 12,725,761.17/5,451.58
  6. Step 6: Final answer
    x = 2,334.33

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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.