Home / 3,857.16-5,319.92-2,798.92

Finding the Fourth Proportional to 3,857.16, 5,319.92 and 2,798.92

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Solution

The fourth proportional to 3,857.16, 5,319.92 and 2,798.92 is: 3,860.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,857.16 : 5,319.92 = 2,798.92 : x
  2. Step 2: Convert to fraction form
    3,857.16/5,319.92 = 2,798.92/x
  3. Step 3: Cross multiply
    3,857.16x = 5,319.92 × 2,798.92
  4. Step 4: Simplify right side
    3,857.16x = 14,890,030.49
  5. Step 5: Solve for x
    x = 14,890,030.49/3,857.16
  6. Step 6: Final answer
    x = 3,860.36

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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.