Home / 2,815.38-4,216.02-1,935.57

Finding the Fourth Proportional to 2,815.38, 4,216.02 and 1,935.57

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Solution

The fourth proportional to 2,815.38, 4,216.02 and 1,935.57 is: 2,898.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815.38 : 4,216.02 = 1,935.57 : x
  2. Step 2: Convert to fraction form
    2,815.38/4,216.02 = 1,935.57/x
  3. Step 3: Cross multiply
    2,815.38x = 4,216.02 × 1,935.57
  4. Step 4: Simplify right side
    2,815.38x = 8,160,401.83
  5. Step 5: Solve for x
    x = 8,160,401.83/2,815.38
  6. Step 6: Final answer
    x = 2,898.51

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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.