Home / 3,601.32-5,397.74-1,378.70

Finding the Fourth Proportional to 3,601.32, 5,397.74 and 1,378.70

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Solution

The fourth proportional to 3,601.32, 5,397.74 and 1,378.70 is: 2,066.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,601.32 : 5,397.74 = 1,378.70 : x
  2. Step 2: Convert to fraction form
    3,601.32/5,397.74 = 1,378.70/x
  3. Step 3: Cross multiply
    3,601.32x = 5,397.74 × 1,378.70
  4. Step 4: Simplify right side
    3,601.32x = 7,441,864.14
  5. Step 5: Solve for x
    x = 7,441,864.14/3,601.32
  6. Step 6: Final answer
    x = 2,066.43

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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.