Home / 2,771.52-4,160.16-1,128

Finding the Fourth Proportional to 2,771.52, 4,160.16 and 1,128

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Solution

The fourth proportional to 2,771.52, 4,160.16 and 1,128 is: 1,693.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,771.52 : 4,160.16 = 1,128 : x
  2. Step 2: Convert to fraction form
    2,771.52/4,160.16 = 1,128/x
  3. Step 3: Cross multiply
    2,771.52x = 4,160.16 × 1,128
  4. Step 4: Simplify right side
    2,771.52x = 4,692,660.48
  5. Step 5: Solve for x
    x = 4,692,660.48/2,771.52
  6. Step 6: Final answer
    x = 1,693.17

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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.