Home / 5,087.90-7,021.65-2,849.74

Finding the Fourth Proportional to 5,087.90, 7,021.65 and 2,849.74

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Solution

The fourth proportional to 5,087.90, 7,021.65 and 2,849.74 is: 3,932.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,087.90 : 7,021.65 = 2,849.74 : x
  2. Step 2: Convert to fraction form
    5,087.90/7,021.65 = 2,849.74/x
  3. Step 3: Cross multiply
    5,087.90x = 7,021.65 × 2,849.74
  4. Step 4: Simplify right side
    5,087.90x = 20,009,870.00
  5. Step 5: Solve for x
    x = 20,009,870.00/5,087.90
  6. Step 6: Final answer
    x = 3,932.83

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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.