Home / 3,109.14-4,640.96-2,740.10

Finding the Fourth Proportional to 3,109.14, 4,640.96 and 2,740.10

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Solution

The fourth proportional to 3,109.14, 4,640.96 and 2,740.10 is: 4,090.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109.14 : 4,640.96 = 2,740.10 : x
  2. Step 2: Convert to fraction form
    3,109.14/4,640.96 = 2,740.10/x
  3. Step 3: Cross multiply
    3,109.14x = 4,640.96 × 2,740.10
  4. Step 4: Simplify right side
    3,109.14x = 12,716,678.14
  5. Step 5: Solve for x
    x = 12,716,678.14/3,109.14
  6. Step 6: Final answer
    x = 4,090.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.