Home / 4,119.12-6,178.68-1,810.16

Finding the Fourth Proportional to 4,119.12, 6,178.68 and 1,810.16

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Solution

The fourth proportional to 4,119.12, 6,178.68 and 1,810.16 is: 2,715.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,119.12 : 6,178.68 = 1,810.16 : x
  2. Step 2: Convert to fraction form
    4,119.12/6,178.68 = 1,810.16/x
  3. Step 3: Cross multiply
    4,119.12x = 6,178.68 × 1,810.16
  4. Step 4: Simplify right side
    4,119.12x = 11,184,399.39
  5. Step 5: Solve for x
    x = 11,184,399.39/4,119.12
  6. Step 6: Final answer
    x = 2,715.24

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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.