Home / 6,221.10-8,585.10-3,426.60

Finding the Fourth Proportional to 6,221.10, 8,585.10 and 3,426.60

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Solution

The fourth proportional to 6,221.10, 8,585.10 and 3,426.60 is: 4,728.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,221.10 : 8,585.10 = 3,426.60 : x
  2. Step 2: Convert to fraction form
    6,221.10/8,585.10 = 3,426.60/x
  3. Step 3: Cross multiply
    6,221.10x = 8,585.10 × 3,426.60
  4. Step 4: Simplify right side
    6,221.10x = 29,417,703.66
  5. Step 5: Solve for x
    x = 29,417,703.66/6,221.10
  6. Step 6: Final answer
    x = 4,728.70

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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.