Home / 3,390.10-5,085.09-1,416.79

Finding the Fourth Proportional to 3,390.10, 5,085.09 and 1,416.79

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Solution

The fourth proportional to 3,390.10, 5,085.09 and 1,416.79 is: 2,125.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.10 : 5,085.09 = 1,416.79 : x
  2. Step 2: Convert to fraction form
    3,390.10/5,085.09 = 1,416.79/x
  3. Step 3: Cross multiply
    3,390.10x = 5,085.09 × 1,416.79
  4. Step 4: Simplify right side
    3,390.10x = 7,204,504.66
  5. Step 5: Solve for x
    x = 7,204,504.66/3,390.10
  6. Step 6: Final answer
    x = 2,125.16

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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.