Home / 4,218.30-5,815.83-3,459.30

Finding the Fourth Proportional to 4,218.30, 5,815.83 and 3,459.30

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Solution

The fourth proportional to 4,218.30, 5,815.83 and 3,459.30 is: 4,769.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,218.30 : 5,815.83 = 3,459.30 : x
  2. Step 2: Convert to fraction form
    4,218.30/5,815.83 = 3,459.30/x
  3. Step 3: Cross multiply
    4,218.30x = 5,815.83 × 3,459.30
  4. Step 4: Simplify right side
    4,218.30x = 20,118,700.72
  5. Step 5: Solve for x
    x = 20,118,700.72/4,218.30
  6. Step 6: Final answer
    x = 4,769.39

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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.