Home / 5,087.09-7,019.87-2,848.59

Finding the Fourth Proportional to 5,087.09, 7,019.87 and 2,848.59

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Solution

The fourth proportional to 5,087.09, 7,019.87 and 2,848.59 is: 3,930.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,087.09 : 7,019.87 = 2,848.59 : x
  2. Step 2: Convert to fraction form
    5,087.09/7,019.87 = 2,848.59/x
  3. Step 3: Cross multiply
    5,087.09x = 7,019.87 × 2,848.59
  4. Step 4: Simplify right side
    5,087.09x = 19,996,717.24
  5. Step 5: Solve for x
    x = 19,996,717.24/5,087.09
  6. Step 6: Final answer
    x = 3,930.88

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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.