Home / 2,647.45-3,653.97-1,528.24

Finding the Fourth Proportional to 2,647.45, 3,653.97 and 1,528.24

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Solution

The fourth proportional to 2,647.45, 3,653.97 and 1,528.24 is: 2,109.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,647.45 : 3,653.97 = 1,528.24 : x
  2. Step 2: Convert to fraction form
    2,647.45/3,653.97 = 1,528.24/x
  3. Step 3: Cross multiply
    2,647.45x = 3,653.97 × 1,528.24
  4. Step 4: Simplify right side
    2,647.45x = 5,584,117.20
  5. Step 5: Solve for x
    x = 5,584,117.20/2,647.45
  6. Step 6: Final answer
    x = 2,109.24

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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.