Home / 2,935.20-4,049.28-1,815.36

Finding the Fourth Proportional to 2,935.20, 4,049.28 and 1,815.36

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Solution

The fourth proportional to 2,935.20, 4,049.28 and 1,815.36 is: 2,504.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,935.20 : 4,049.28 = 1,815.36 : x
  2. Step 2: Convert to fraction form
    2,935.20/4,049.28 = 1,815.36/x
  3. Step 3: Cross multiply
    2,935.20x = 4,049.28 × 1,815.36
  4. Step 4: Simplify right side
    2,935.20x = 7,350,900.94
  5. Step 5: Solve for x
    x = 7,350,900.94/2,935.20
  6. Step 6: Final answer
    x = 2,504.40

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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.