Home / 7,017.80-10,528.49-2,087.42

Finding the Fourth Proportional to 7,017.80, 10,528.49 and 2,087.42

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Solution

The fourth proportional to 7,017.80, 10,528.49 and 2,087.42 is: 3,131.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,017.80 : 10,528.49 = 2,087.42 : x
  2. Step 2: Convert to fraction form
    7,017.80/10,528.49 = 2,087.42/x
  3. Step 3: Cross multiply
    7,017.80x = 10,528.49 × 2,087.42
  4. Step 4: Simplify right side
    7,017.80x = 21,977,396.48
  5. Step 5: Solve for x
    x = 21,977,396.48/7,017.80
  6. Step 6: Final answer
    x = 3,131.67

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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.