Home / 5,460.15-8,189.60-1,511.70

Finding the Fourth Proportional to 5,460.15, 8,189.60 and 1,511.70

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Solution

The fourth proportional to 5,460.15, 8,189.60 and 1,511.70 is: 2,267.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,460.15 : 8,189.60 = 1,511.70 : x
  2. Step 2: Convert to fraction form
    5,460.15/8,189.60 = 1,511.70/x
  3. Step 3: Cross multiply
    5,460.15x = 8,189.60 × 1,511.70
  4. Step 4: Simplify right side
    5,460.15x = 12,380,210.76
  5. Step 5: Solve for x
    x = 12,380,210.76/5,460.15
  6. Step 6: Final answer
    x = 2,267.38

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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.