Home / 3,012.28-4,155.72-2,127.76

Finding the Fourth Proportional to 3,012.28, 4,155.72 and 2,127.76

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Solution

The fourth proportional to 3,012.28, 4,155.72 and 2,127.76 is: 2,935.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,012.28 : 4,155.72 = 2,127.76 : x
  2. Step 2: Convert to fraction form
    3,012.28/4,155.72 = 2,127.76/x
  3. Step 3: Cross multiply
    3,012.28x = 4,155.72 × 2,127.76
  4. Step 4: Simplify right side
    3,012.28x = 8,842,374.79
  5. Step 5: Solve for x
    x = 8,842,374.79/3,012.28
  6. Step 6: Final answer
    x = 2,935.44

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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.