Home / 4,119.12-6,177.84-3,430.20

Finding the Fourth Proportional to 4,119.12, 6,177.84 and 3,430.20

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Solution

The fourth proportional to 4,119.12, 6,177.84 and 3,430.20 is: 5,144.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,119.12 : 6,177.84 = 3,430.20 : x
  2. Step 2: Convert to fraction form
    4,119.12/6,177.84 = 3,430.20/x
  3. Step 3: Cross multiply
    4,119.12x = 6,177.84 × 3,430.20
  4. Step 4: Simplify right side
    4,119.12x = 21,191,226.77
  5. Step 5: Solve for x
    x = 21,191,226.77/4,119.12
  6. Step 6: Final answer
    x = 5,144.60

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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.