Home / 2,902.86-4,004.24-2,145.92

Finding the Fourth Proportional to 2,902.86, 4,004.24 and 2,145.92

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Solution

The fourth proportional to 2,902.86, 4,004.24 and 2,145.92 is: 2,960.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,902.86 : 4,004.24 = 2,145.92 : x
  2. Step 2: Convert to fraction form
    2,902.86/4,004.24 = 2,145.92/x
  3. Step 3: Cross multiply
    2,902.86x = 4,004.24 × 2,145.92
  4. Step 4: Simplify right side
    2,902.86x = 8,592,747.95
  5. Step 5: Solve for x
    x = 8,592,747.95/2,902.86
  6. Step 6: Final answer
    x = 2,960.10

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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.