Home / 7,017.85-10,528.40-2,087.38

Finding the Fourth Proportional to 7,017.85, 10,528.40 and 2,087.38

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Solution

The fourth proportional to 7,017.85, 10,528.40 and 2,087.38 is: 3,131.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,017.85 : 10,528.40 = 2,087.38 : x
  2. Step 2: Convert to fraction form
    7,017.85/10,528.40 = 2,087.38/x
  3. Step 3: Cross multiply
    7,017.85x = 10,528.40 × 2,087.38
  4. Step 4: Simplify right side
    7,017.85x = 21,976,734.83
  5. Step 5: Solve for x
    x = 21,976,734.83/7,017.85
  6. Step 6: Final answer
    x = 3,131.55

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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.