Home / 2,740.08-4,108.07-890.09

Finding the Fourth Proportional to 2,740.08, 4,108.07 and 890.09

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Solution

The fourth proportional to 2,740.08, 4,108.07 and 890.09 is: 1,334.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,740.08 : 4,108.07 = 890.09 : x
  2. Step 2: Convert to fraction form
    2,740.08/4,108.07 = 890.09/x
  3. Step 3: Cross multiply
    2,740.08x = 4,108.07 × 890.09
  4. Step 4: Simplify right side
    2,740.08x = 3,656,544.11
  5. Step 5: Solve for x
    x = 3,656,544.11/2,740.08
  6. Step 6: Final answer
    x = 1,334.47

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1.5x scale

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.