Home / 4,485.72-6,190.20-2,807.88

Finding the Fourth Proportional to 4,485.72, 6,190.20 and 2,807.88

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Solution

The fourth proportional to 4,485.72, 6,190.20 and 2,807.88 is: 3,874.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,485.72 : 6,190.20 = 2,807.88 : x
  2. Step 2: Convert to fraction form
    4,485.72/6,190.20 = 2,807.88/x
  3. Step 3: Cross multiply
    4,485.72x = 6,190.20 × 2,807.88
  4. Step 4: Simplify right side
    4,485.72x = 17,381,338.78
  5. Step 5: Solve for x
    x = 17,381,338.78/4,485.72
  6. Step 6: Final answer
    x = 3,874.82

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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.