Home / 3,588.12-5,378.94-1,279.08

Finding the Fourth Proportional to 3,588.12, 5,378.94 and 1,279.08

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Solution

The fourth proportional to 3,588.12, 5,378.94 and 1,279.08 is: 1,917.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,588.12 : 5,378.94 = 1,279.08 : x
  2. Step 2: Convert to fraction form
    3,588.12/5,378.94 = 1,279.08/x
  3. Step 3: Cross multiply
    3,588.12x = 5,378.94 × 1,279.08
  4. Step 4: Simplify right side
    3,588.12x = 6,880,094.58
  5. Step 5: Solve for x
    x = 6,880,094.58/3,588.12
  6. Step 6: Final answer
    x = 1,917.47

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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.