Home / 5,138.08-7,088.88-3,274.72

Finding the Fourth Proportional to 5,138.08, 7,088.88 and 3,274.72

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Solution

The fourth proportional to 5,138.08, 7,088.88 and 3,274.72 is: 4,518.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,138.08 : 7,088.88 = 3,274.72 : x
  2. Step 2: Convert to fraction form
    5,138.08/7,088.88 = 3,274.72/x
  3. Step 3: Cross multiply
    5,138.08x = 7,088.88 × 3,274.72
  4. Step 4: Simplify right side
    5,138.08x = 23,214,097.11
  5. Step 5: Solve for x
    x = 23,214,097.11/5,138.08
  6. Step 6: Final answer
    x = 4,518.05

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1.5x scale

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.