Home / 4,218.60-6,327.90-3,125.10

Finding the Fourth Proportional to 4,218.60, 6,327.90 and 3,125.10

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Solution

The fourth proportional to 4,218.60, 6,327.90 and 3,125.10 is: 4,687.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,218.60 : 6,327.90 = 3,125.10 : x
  2. Step 2: Convert to fraction form
    4,218.60/6,327.90 = 3,125.10/x
  3. Step 3: Cross multiply
    4,218.60x = 6,327.90 × 3,125.10
  4. Step 4: Simplify right side
    4,218.60x = 19,775,320.29
  5. Step 5: Solve for x
    x = 19,775,320.29/4,218.60
  6. Step 6: Final answer
    x = 4,687.65

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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.