Home / 5,671.80-8,511.72-4,206.48

Finding the Fourth Proportional to 5,671.80, 8,511.72 and 4,206.48

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Solution

The fourth proportional to 5,671.80, 8,511.72 and 4,206.48 is: 6,312.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,671.80 : 8,511.72 = 4,206.48 : x
  2. Step 2: Convert to fraction form
    5,671.80/8,511.72 = 4,206.48/x
  3. Step 3: Cross multiply
    5,671.80x = 8,511.72 × 4,206.48
  4. Step 4: Simplify right side
    5,671.80x = 35,804,379.95
  5. Step 5: Solve for x
    x = 35,804,379.95/5,671.80
  6. Step 6: Final answer
    x = 6,312.70

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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.