Home / 2,647.92-3,653.98-1,528.79

Finding the Fourth Proportional to 2,647.92, 3,653.98 and 1,528.79

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Solution

The fourth proportional to 2,647.92, 3,653.98 and 1,528.79 is: 2,109.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,647.92 : 3,653.98 = 1,528.79 : x
  2. Step 2: Convert to fraction form
    2,647.92/3,653.98 = 1,528.79/x
  3. Step 3: Cross multiply
    2,647.92x = 3,653.98 × 1,528.79
  4. Step 4: Simplify right side
    2,647.92x = 5,586,145.99
  5. Step 5: Solve for x
    x = 5,586,145.99/2,647.92
  6. Step 6: Final answer
    x = 2,109.64

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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.