Home / 6,240.80-8,612.10-3,408.09

Finding the Fourth Proportional to 6,240.80, 8,612.10 and 3,408.09

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Solution

The fourth proportional to 6,240.80, 8,612.10 and 3,408.09 is: 4,703.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,240.80 : 8,612.10 = 3,408.09 : x
  2. Step 2: Convert to fraction form
    6,240.80/8,612.10 = 3,408.09/x
  3. Step 3: Cross multiply
    6,240.80x = 8,612.10 × 3,408.09
  4. Step 4: Simplify right side
    6,240.80x = 29,350,811.89
  5. Step 5: Solve for x
    x = 29,350,811.89/6,240.80
  6. Step 6: Final answer
    x = 4,703.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.