Home / 3,664.29-5,056.75-1,985.70

Finding the Fourth Proportional to 3,664.29, 5,056.75 and 1,985.70

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Solution

The fourth proportional to 3,664.29, 5,056.75 and 1,985.70 is: 2,740.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,664.29 : 5,056.75 = 1,985.70 : x
  2. Step 2: Convert to fraction form
    3,664.29/5,056.75 = 1,985.70/x
  3. Step 3: Cross multiply
    3,664.29x = 5,056.75 × 1,985.70
  4. Step 4: Simplify right side
    3,664.29x = 10,041,189.27
  5. Step 5: Solve for x
    x = 10,041,189.27/3,664.29
  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.