Home / 3,891.63-5,838.81-2,429.07

Finding the Fourth Proportional to 3,891.63, 5,838.81 and 2,429.07

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Solution

The fourth proportional to 3,891.63, 5,838.81 and 2,429.07 is: 3,644.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,891.63 : 5,838.81 = 2,429.07 : x
  2. Step 2: Convert to fraction form
    3,891.63/5,838.81 = 2,429.07/x
  3. Step 3: Cross multiply
    3,891.63x = 5,838.81 × 2,429.07
  4. Step 4: Simplify right side
    3,891.63x = 14,182,878.21
  5. Step 5: Solve for x
    x = 14,182,878.21/3,891.63
  6. Step 6: Final answer
    x = 3,644.46

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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.