Home / 4,258.10-6,387.15-4,230.80

Finding the Fourth Proportional to 4,258.10, 6,387.15 and 4,230.80

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Solution

The fourth proportional to 4,258.10, 6,387.15 and 4,230.80 is: 6,346.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,258.10 : 6,387.15 = 4,230.80 : x
  2. Step 2: Convert to fraction form
    4,258.10/6,387.15 = 4,230.80/x
  3. Step 3: Cross multiply
    4,258.10x = 6,387.15 × 4,230.80
  4. Step 4: Simplify right side
    4,258.10x = 27,022,754.22
  5. Step 5: Solve for x
    x = 27,022,754.22/4,258.10
  6. Step 6: Final answer
    x = 6,346.20

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1.5x scale

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.