Home / 4,121.32-6,178.10-1,346.06

Finding the Fourth Proportional to 4,121.32, 6,178.10 and 1,346.06

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Solution

The fourth proportional to 4,121.32, 6,178.10 and 1,346.06 is: 2,017.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.32 : 6,178.10 = 1,346.06 : x
  2. Step 2: Convert to fraction form
    4,121.32/6,178.10 = 1,346.06/x
  3. Step 3: Cross multiply
    4,121.32x = 6,178.10 × 1,346.06
  4. Step 4: Simplify right side
    4,121.32x = 8,316,093.29
  5. Step 5: Solve for x
    x = 8,316,093.29/4,121.32
  6. Step 6: Final answer
    x = 2,017.82

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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.