Home / 2,824.08-3,896.55-1,988.16

Finding the Fourth Proportional to 2,824.08, 3,896.55 and 1,988.16

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Solution

The fourth proportional to 2,824.08, 3,896.55 and 1,988.16 is: 2,743.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,824.08 : 3,896.55 = 1,988.16 : x
  2. Step 2: Convert to fraction form
    2,824.08/3,896.55 = 1,988.16/x
  3. Step 3: Cross multiply
    2,824.08x = 3,896.55 × 1,988.16
  4. Step 4: Simplify right side
    2,824.08x = 7,746,964.85
  5. Step 5: Solve for x
    x = 7,746,964.85/2,824.08
  6. Step 6: Final answer
    x = 2,743.18

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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.