Home / 5,256.28-7,887.96-2,178.28

Finding the Fourth Proportional to 5,256.28, 7,887.96 and 2,178.28

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Solution

The fourth proportional to 5,256.28, 7,887.96 and 2,178.28 is: 3,268.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,256.28 : 7,887.96 = 2,178.28 : x
  2. Step 2: Convert to fraction form
    5,256.28/7,887.96 = 2,178.28/x
  3. Step 3: Cross multiply
    5,256.28x = 7,887.96 × 2,178.28
  4. Step 4: Simplify right side
    5,256.28x = 17,182,185.51
  5. Step 5: Solve for x
    x = 17,182,185.51/5,256.28
  6. Step 6: Final answer
    x = 3,268.89

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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.