Home / 5,274.58-7,279.64-3,036.40

Finding the Fourth Proportional to 5,274.58, 7,279.64 and 3,036.40

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Solution

The fourth proportional to 5,274.58, 7,279.64 and 3,036.40 is: 4,190.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,274.58 : 7,279.64 = 3,036.40 : x
  2. Step 2: Convert to fraction form
    5,274.58/7,279.64 = 3,036.40/x
  3. Step 3: Cross multiply
    5,274.58x = 7,279.64 × 3,036.40
  4. Step 4: Simplify right side
    5,274.58x = 22,103,898.90
  5. Step 5: Solve for x
    x = 22,103,898.90/5,274.58
  6. Step 6: Final answer
    x = 4,190.65

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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.