Home / 3,516.70-5,275.35-1,208.20

Finding the Fourth Proportional to 3,516.70, 5,275.35 and 1,208.20

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Solution

The fourth proportional to 3,516.70, 5,275.35 and 1,208.20 is: 1,812.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,516.70 : 5,275.35 = 1,208.20 : x
  2. Step 2: Convert to fraction form
    3,516.70/5,275.35 = 1,208.20/x
  3. Step 3: Cross multiply
    3,516.70x = 5,275.35 × 1,208.20
  4. Step 4: Simplify right side
    3,516.70x = 6,373,677.87
  5. Step 5: Solve for x
    x = 6,373,677.87/3,516.70
  6. Step 6: Final answer
    x = 1,812.40

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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.