Home / 3,134.99-4,327.40-2,087.39

Finding the Fourth Proportional to 3,134.99, 4,327.40 and 2,087.39

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Solution

The fourth proportional to 3,134.99, 4,327.40 and 2,087.39 is: 2,881.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,134.99 : 4,327.40 = 2,087.39 : x
  2. Step 2: Convert to fraction form
    3,134.99/4,327.40 = 2,087.39/x
  3. Step 3: Cross multiply
    3,134.99x = 4,327.40 × 2,087.39
  4. Step 4: Simplify right side
    3,134.99x = 9,032,971.49
  5. Step 5: Solve for x
    x = 9,032,971.49/3,134.99
  6. Step 6: Final answer
    x = 2,881.34

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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.