Home / 3,146.32-4,717.60-1,390.44

Finding the Fourth Proportional to 3,146.32, 4,717.60 and 1,390.44

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Solution

The fourth proportional to 3,146.32, 4,717.60 and 1,390.44 is: 2,084.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,146.32 : 4,717.60 = 1,390.44 : x
  2. Step 2: Convert to fraction form
    3,146.32/4,717.60 = 1,390.44/x
  3. Step 3: Cross multiply
    3,146.32x = 4,717.60 × 1,390.44
  4. Step 4: Simplify right side
    3,146.32x = 6,559,539.74
  5. Step 5: Solve for x
    x = 6,559,539.74/3,146.32
  6. Step 6: Final answer
    x = 2,084.83

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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.