Home / 3,465.64-5,190.68-2,680.12

Finding the Fourth Proportional to 3,465.64, 5,190.68 and 2,680.12

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Solution

The fourth proportional to 3,465.64, 5,190.68 and 2,680.12 is: 4,014.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,465.64 : 5,190.68 = 2,680.12 : x
  2. Step 2: Convert to fraction form
    3,465.64/5,190.68 = 2,680.12/x
  3. Step 3: Cross multiply
    3,465.64x = 5,190.68 × 2,680.12
  4. Step 4: Simplify right side
    3,465.64x = 13,911,631.88
  5. Step 5: Solve for x
    x = 13,911,631.88/3,465.64
  6. Step 6: Final answer
    x = 4,014.16

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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.