Home / 3,656.56-5,043.96-2,985.40

Finding the Fourth Proportional to 3,656.56, 5,043.96 and 2,985.40

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Solution

The fourth proportional to 3,656.56, 5,043.96 and 2,985.40 is: 4,118.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,656.56 : 5,043.96 = 2,985.40 : x
  2. Step 2: Convert to fraction form
    3,656.56/5,043.96 = 2,985.40/x
  3. Step 3: Cross multiply
    3,656.56x = 5,043.96 × 2,985.40
  4. Step 4: Simplify right side
    3,656.56x = 15,058,238.18
  5. Step 5: Solve for x
    x = 15,058,238.18/3,656.56
  6. Step 6: Final answer
    x = 4,118.14

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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.