Home / 4,120.24-6,178.26-1,345.14

Finding the Fourth Proportional to 4,120.24, 6,178.26 and 1,345.14

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Solution

The fourth proportional to 4,120.24, 6,178.26 and 1,345.14 is: 2,017.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.24 : 6,178.26 = 1,345.14 : x
  2. Step 2: Convert to fraction form
    4,120.24/6,178.26 = 1,345.14/x
  3. Step 3: Cross multiply
    4,120.24x = 6,178.26 × 1,345.14
  4. Step 4: Simplify right side
    4,120.24x = 8,310,624.66
  5. Step 5: Solve for x
    x = 8,310,624.66/4,120.24
  6. Step 6: Final answer
    x = 2,017.02

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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.