Home / 3,809.64-5,699.40-2,887.80

Finding the Fourth Proportional to 3,809.64, 5,699.40 and 2,887.80

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Solution

The fourth proportional to 3,809.64, 5,699.40 and 2,887.80 is: 4,320.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,809.64 : 5,699.40 = 2,887.80 : x
  2. Step 2: Convert to fraction form
    3,809.64/5,699.40 = 2,887.80/x
  3. Step 3: Cross multiply
    3,809.64x = 5,699.40 × 2,887.80
  4. Step 4: Simplify right side
    3,809.64x = 16,458,727.32
  5. Step 5: Solve for x
    x = 16,458,727.32/3,809.64
  6. Step 6: Final answer
    x = 4,320.28

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1.5x scale

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.