Home / 3,908.96-5,864.66-1,312.01

Finding the Fourth Proportional to 3,908.96, 5,864.66 and 1,312.01

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Solution

The fourth proportional to 3,908.96, 5,864.66 and 1,312.01 is: 1,968.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,908.96 : 5,864.66 = 1,312.01 : x
  2. Step 2: Convert to fraction form
    3,908.96/5,864.66 = 1,312.01/x
  3. Step 3: Cross multiply
    3,908.96x = 5,864.66 × 1,312.01
  4. Step 4: Simplify right side
    3,908.96x = 7,694,492.57
  5. Step 5: Solve for x
    x = 7,694,492.57/3,908.96
  6. Step 6: Final answer
    x = 1,968.42

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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.