Home / 2,653.64-3,979.37-1,152.76

Finding the Fourth Proportional to 2,653.64, 3,979.37 and 1,152.76

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Solution

The fourth proportional to 2,653.64, 3,979.37 and 1,152.76 is: 1,728.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,653.64 : 3,979.37 = 1,152.76 : x
  2. Step 2: Convert to fraction form
    2,653.64/3,979.37 = 1,152.76/x
  3. Step 3: Cross multiply
    2,653.64x = 3,979.37 × 1,152.76
  4. Step 4: Simplify right side
    2,653.64x = 4,587,251.49
  5. Step 5: Solve for x
    x = 4,587,251.49/2,653.64
  6. Step 6: Final answer
    x = 1,728.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.