Home / 2,864.05-3,950.45-1,685.12

Finding the Fourth Proportional to 2,864.05, 3,950.45 and 1,685.12

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Solution

The fourth proportional to 2,864.05, 3,950.45 and 1,685.12 is: 2,324.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,864.05 : 3,950.45 = 1,685.12 : x
  2. Step 2: Convert to fraction form
    2,864.05/3,950.45 = 1,685.12/x
  3. Step 3: Cross multiply
    2,864.05x = 3,950.45 × 1,685.12
  4. Step 4: Simplify right side
    2,864.05x = 6,656,960.45
  5. Step 5: Solve for x
    x = 6,656,960.45/2,864.05
  6. Step 6: Final answer
    x = 2,324.32

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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.