Home / 3,613.10-4,985.70-2,268.50

Finding the Fourth Proportional to 3,613.10, 4,985.70 and 2,268.50

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Solution

The fourth proportional to 3,613.10, 4,985.70 and 2,268.50 is: 3,130.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,613.10 : 4,985.70 = 2,268.50 : x
  2. Step 2: Convert to fraction form
    3,613.10/4,985.70 = 2,268.50/x
  3. Step 3: Cross multiply
    3,613.10x = 4,985.70 × 2,268.50
  4. Step 4: Simplify right side
    3,613.10x = 11,310,060.45
  5. Step 5: Solve for x
    x = 11,310,060.45/3,613.10
  6. Step 6: Final answer
    x = 3,130.29

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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.