Home / 5,039.80-6,955.30-2,801.86

Finding the Fourth Proportional to 5,039.80, 6,955.30 and 2,801.86

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Solution

The fourth proportional to 5,039.80, 6,955.30 and 2,801.86 is: 3,866.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,039.80 : 6,955.30 = 2,801.86 : x
  2. Step 2: Convert to fraction form
    5,039.80/6,955.30 = 2,801.86/x
  3. Step 3: Cross multiply
    5,039.80x = 6,955.30 × 2,801.86
  4. Step 4: Simplify right side
    5,039.80x = 19,487,776.86
  5. Step 5: Solve for x
    x = 19,487,776.86/5,039.80
  6. Step 6: Final answer
    x = 3,866.78

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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.