Home / 3,164.47-4,366.50-1,985.92

Finding the Fourth Proportional to 3,164.47, 4,366.50 and 1,985.92

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Solution

The fourth proportional to 3,164.47, 4,366.50 and 1,985.92 is: 2,740.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,164.47 : 4,366.50 = 1,985.92 : x
  2. Step 2: Convert to fraction form
    3,164.47/4,366.50 = 1,985.92/x
  3. Step 3: Cross multiply
    3,164.47x = 4,366.50 × 1,985.92
  4. Step 4: Simplify right side
    3,164.47x = 8,671,519.68
  5. Step 5: Solve for x
    x = 8,671,519.68/3,164.47
  6. Step 6: Final answer
    x = 2,740.28

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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.