Home / 2,955.14-4,078.12-1,628.88

Finding the Fourth Proportional to 2,955.14, 4,078.12 and 1,628.88

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Solution

The fourth proportional to 2,955.14, 4,078.12 and 1,628.88 is: 2,247.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,955.14 : 4,078.12 = 1,628.88 : x
  2. Step 2: Convert to fraction form
    2,955.14/4,078.12 = 1,628.88/x
  3. Step 3: Cross multiply
    2,955.14x = 4,078.12 × 1,628.88
  4. Step 4: Simplify right side
    2,955.14x = 6,642,768.11
  5. Step 5: Solve for x
    x = 6,642,768.11/2,955.14
  6. Step 6: Final answer
    x = 2,247.87

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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.