Home / 2,057.92-2,840.32-1,272.32

Finding the Fourth Proportional to 2,057.92, 2,840.32 and 1,272.32

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Solution

The fourth proportional to 2,057.92, 2,840.32 and 1,272.32 is: 1,756.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,057.92 : 2,840.32 = 1,272.32 : x
  2. Step 2: Convert to fraction form
    2,057.92/2,840.32 = 1,272.32/x
  3. Step 3: Cross multiply
    2,057.92x = 2,840.32 × 1,272.32
  4. Step 4: Simplify right side
    2,057.92x = 3,613,795.94
  5. Step 5: Solve for x
    x = 3,613,795.94/2,057.92
  6. Step 6: Final answer
    x = 1,756.04

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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.