Home / 2,955.20-4,078.14-1,836.08

Finding the Fourth Proportional to 2,955.20, 4,078.14 and 1,836.08

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Solution

The fourth proportional to 2,955.20, 4,078.14 and 1,836.08 is: 2,533.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,955.20 : 4,078.14 = 1,836.08 : x
  2. Step 2: Convert to fraction form
    2,955.20/4,078.14 = 1,836.08/x
  3. Step 3: Cross multiply
    2,955.20x = 4,078.14 × 1,836.08
  4. Step 4: Simplify right side
    2,955.20x = 7,487,791.29
  5. Step 5: Solve for x
    x = 7,487,791.29/2,955.20
  6. Step 6: Final answer
    x = 2,533.77

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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.