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Finding the Fourth Proportional to 3,207.51, 4,812.11 and 1,358.69

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Solution

The fourth proportional to 3,207.51, 4,812.11 and 1,358.69 is: 2,038.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,207.51 : 4,812.11 = 1,358.69 : x
  2. Step 2: Convert to fraction form
    3,207.51/4,812.11 = 1,358.69/x
  3. Step 3: Cross multiply
    3,207.51x = 4,812.11 × 1,358.69
  4. Step 4: Simplify right side
    3,207.51x = 6,538,181.16
  5. Step 5: Solve for x
    x = 6,538,181.16/3,207.51
  6. Step 6: Final answer
    x = 2,038.40

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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.