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Finding the Fourth Proportional to 3,479.45, 4,807.71 and 2,739.29

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Solution

The fourth proportional to 3,479.45, 4,807.71 and 2,739.29 is: 3,785.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,479.45 : 4,807.71 = 2,739.29 : x
  2. Step 2: Convert to fraction form
    3,479.45/4,807.71 = 2,739.29/x
  3. Step 3: Cross multiply
    3,479.45x = 4,807.71 × 2,739.29
  4. Step 4: Simplify right side
    3,479.45x = 13,169,711.93
  5. Step 5: Solve for x
    x = 13,169,711.93/3,479.45
  6. Step 6: Final answer
    x = 3,785.00

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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.