Home / 2,864.28-3,952.63-1,685.42

Finding the Fourth Proportional to 2,864.28, 3,952.63 and 1,685.42

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Solution

The fourth proportional to 2,864.28, 3,952.63 and 1,685.42 is: 2,325.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,864.28 : 3,952.63 = 1,685.42 : x
  2. Step 2: Convert to fraction form
    2,864.28/3,952.63 = 1,685.42/x
  3. Step 3: Cross multiply
    2,864.28x = 3,952.63 × 1,685.42
  4. Step 4: Simplify right side
    2,864.28x = 6,661,841.65
  5. Step 5: Solve for x
    x = 6,661,841.65/2,864.28
  6. Step 6: Final answer
    x = 2,325.83

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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.