Home / 6,528.40-9,788.96-2,145.52

Finding the Fourth Proportional to 6,528.40, 9,788.96 and 2,145.52

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Solution

The fourth proportional to 6,528.40, 9,788.96 and 2,145.52 is: 3,217.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,528.40 : 9,788.96 = 2,145.52 : x
  2. Step 2: Convert to fraction form
    6,528.40/9,788.96 = 2,145.52/x
  3. Step 3: Cross multiply
    6,528.40x = 9,788.96 × 2,145.52
  4. Step 4: Simplify right side
    6,528.40x = 21,002,409.46
  5. Step 5: Solve for x
    x = 21,002,409.46/6,528.40
  6. Step 6: Final answer
    x = 3,217.08

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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.