Home / 2,857.16-4,282.65-1,866.86

Finding the Fourth Proportional to 2,857.16, 4,282.65 and 1,866.86

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Solution

The fourth proportional to 2,857.16, 4,282.65 and 1,866.86 is: 2,798.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,857.16 : 4,282.65 = 1,866.86 : x
  2. Step 2: Convert to fraction form
    2,857.16/4,282.65 = 1,866.86/x
  3. Step 3: Cross multiply
    2,857.16x = 4,282.65 × 1,866.86
  4. Step 4: Simplify right side
    2,857.16x = 7,995,086.57
  5. Step 5: Solve for x
    x = 7,995,086.57/2,857.16
  6. Step 6: Final answer
    x = 2,798.26

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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.