Home / 3,146.32-4,342.94-2,814.16

Finding the Fourth Proportional to 3,146.32, 4,342.94 and 2,814.16

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Solution

The fourth proportional to 3,146.32, 4,342.94 and 2,814.16 is: 3,884.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,146.32 : 4,342.94 = 2,814.16 : x
  2. Step 2: Convert to fraction form
    3,146.32/4,342.94 = 2,814.16/x
  3. Step 3: Cross multiply
    3,146.32x = 4,342.94 × 2,814.16
  4. Step 4: Simplify right side
    3,146.32x = 12,221,728.03
  5. Step 5: Solve for x
    x = 12,221,728.03/3,146.32
  6. Step 6: Final answer
    x = 3,884.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.