Home / 2,110.10-3,165.60-649.40

Finding the Fourth Proportional to 2,110.10, 3,165.60 and 649.40

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Solution

The fourth proportional to 2,110.10, 3,165.60 and 649.40 is: 974.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,110.10 : 3,165.60 = 649.40 : x
  2. Step 2: Convert to fraction form
    2,110.10/3,165.60 = 649.40/x
  3. Step 3: Cross multiply
    2,110.10x = 3,165.60 × 649.40
  4. Step 4: Simplify right side
    2,110.10x = 2,055,740.64
  5. Step 5: Solve for x
    x = 2,055,740.64/2,110.10
  6. Step 6: Final answer
    x = 974.24

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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.