Home / 2,128.29-2,935.28-2,077.56

Finding the Fourth Proportional to 2,128.29, 2,935.28 and 2,077.56

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Solution

The fourth proportional to 2,128.29, 2,935.28 and 2,077.56 is: 2,865.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128.29 : 2,935.28 = 2,077.56 : x
  2. Step 2: Convert to fraction form
    2,128.29/2,935.28 = 2,077.56/x
  3. Step 3: Cross multiply
    2,128.29x = 2,935.28 × 2,077.56
  4. Step 4: Simplify right side
    2,128.29x = 6,098,209.93
  5. Step 5: Solve for x
    x = 6,098,209.93/2,128.29
  6. Step 6: Final answer
    x = 2,865.31

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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.