Home / 2,957.68-4,427.29-2,178.56

Finding the Fourth Proportional to 2,957.68, 4,427.29 and 2,178.56

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Solution

The fourth proportional to 2,957.68, 4,427.29 and 2,178.56 is: 3,261.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,957.68 : 4,427.29 = 2,178.56 : x
  2. Step 2: Convert to fraction form
    2,957.68/4,427.29 = 2,178.56/x
  3. Step 3: Cross multiply
    2,957.68x = 4,427.29 × 2,178.56
  4. Step 4: Simplify right side
    2,957.68x = 9,645,130.69
  5. Step 5: Solve for x
    x = 9,645,130.69/2,957.68
  6. Step 6: Final answer
    x = 3,261.04

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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.