Home / 5,278.96-7,918.44-3,434.59

Finding the Fourth Proportional to 5,278.96, 7,918.44 and 3,434.59

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Solution

The fourth proportional to 5,278.96, 7,918.44 and 3,434.59 is: 5,151.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,278.96 : 7,918.44 = 3,434.59 : x
  2. Step 2: Convert to fraction form
    5,278.96/7,918.44 = 3,434.59/x
  3. Step 3: Cross multiply
    5,278.96x = 7,918.44 × 3,434.59
  4. Step 4: Simplify right side
    5,278.96x = 27,196,594.84
  5. Step 5: Solve for x
    x = 27,196,594.84/5,278.96
  6. Step 6: Final answer
    x = 5,151.89

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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.