Home / 1,370.45-2,056.59-1,279.33

Finding the Fourth Proportional to 1,370.45, 2,056.59 and 1,279.33

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Solution

The fourth proportional to 1,370.45, 2,056.59 and 1,279.33 is: 1,919.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370.45 : 2,056.59 = 1,279.33 : x
  2. Step 2: Convert to fraction form
    1,370.45/2,056.59 = 1,279.33/x
  3. Step 3: Cross multiply
    1,370.45x = 2,056.59 × 1,279.33
  4. Step 4: Simplify right side
    1,370.45x = 2,631,052.14
  5. Step 5: Solve for x
    x = 2,631,052.14/1,370.45
  6. Step 6: Final answer
    x = 1,919.84

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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.