Home / 6,455.10-8,906.66-4,220.26

Finding the Fourth Proportional to 6,455.10, 8,906.66 and 4,220.26

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Solution

The fourth proportional to 6,455.10, 8,906.66 and 4,220.26 is: 5,823.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,455.10 : 8,906.66 = 4,220.26 : x
  2. Step 2: Convert to fraction form
    6,455.10/8,906.66 = 4,220.26/x
  3. Step 3: Cross multiply
    6,455.10x = 8,906.66 × 4,220.26
  4. Step 4: Simplify right side
    6,455.10x = 37,588,377.56
  5. Step 5: Solve for x
    x = 37,588,377.56/6,455.10
  6. Step 6: Final answer
    x = 5,823.05

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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.