Home / 5,621.15-8,431.87-1,461.06

Finding the Fourth Proportional to 5,621.15, 8,431.87 and 1,461.06

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Solution

The fourth proportional to 5,621.15, 8,431.87 and 1,461.06 is: 2,191.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,621.15 : 8,431.87 = 1,461.06 : x
  2. Step 2: Convert to fraction form
    5,621.15/8,431.87 = 1,461.06/x
  3. Step 3: Cross multiply
    5,621.15x = 8,431.87 × 1,461.06
  4. Step 4: Simplify right side
    5,621.15x = 12,319,467.98
  5. Step 5: Solve for x
    x = 12,319,467.98/5,621.15
  6. Step 6: Final answer
    x = 2,191.63

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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.