Home / 6,528.75-9,788.67-2,145.57

Finding the Fourth Proportional to 6,528.75, 9,788.67 and 2,145.57

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Solution

The fourth proportional to 6,528.75, 9,788.67 and 2,145.57 is: 3,216.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,528.75 : 9,788.67 = 2,145.57 : x
  2. Step 2: Convert to fraction form
    6,528.75/9,788.67 = 2,145.57/x
  3. Step 3: Cross multiply
    6,528.75x = 9,788.67 × 2,145.57
  4. Step 4: Simplify right side
    6,528.75x = 21,002,276.69
  5. Step 5: Solve for x
    x = 21,002,276.69/6,528.75
  6. Step 6: Final answer
    x = 3,216.89

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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.