Home / 2,736.19-3,776.39-1,688.32

Finding the Fourth Proportional to 2,736.19, 3,776.39 and 1,688.32

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Solution

The fourth proportional to 2,736.19, 3,776.39 and 1,688.32 is: 2,330.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,736.19 : 3,776.39 = 1,688.32 : x
  2. Step 2: Convert to fraction form
    2,736.19/3,776.39 = 1,688.32/x
  3. Step 3: Cross multiply
    2,736.19x = 3,776.39 × 1,688.32
  4. Step 4: Simplify right side
    2,736.19x = 6,375,754.76
  5. Step 5: Solve for x
    x = 6,375,754.76/2,736.19
  6. Step 6: Final answer
    x = 2,330.16

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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.