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Finding the Fourth Proportional to 4,960.64, 6,845.81 and 2,807.01

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Solution

The fourth proportional to 4,960.64, 6,845.81 and 2,807.01 is: 3,873.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,960.64 : 6,845.81 = 2,807.01 : x
  2. Step 2: Convert to fraction form
    4,960.64/6,845.81 = 2,807.01/x
  3. Step 3: Cross multiply
    4,960.64x = 6,845.81 × 2,807.01
  4. Step 4: Simplify right side
    4,960.64x = 19,216,289.82
  5. Step 5: Solve for x
    x = 19,216,289.82/4,960.64
  6. Step 6: Final answer
    x = 3,873.75

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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.