Home / 2,213.10-3,319.71-914.25

Finding the Fourth Proportional to 2,213.10, 3,319.71 and 914.25

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Solution

The fourth proportional to 2,213.10, 3,319.71 and 914.25 is: 1,371.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,213.10 : 3,319.71 = 914.25 : x
  2. Step 2: Convert to fraction form
    2,213.10/3,319.71 = 914.25/x
  3. Step 3: Cross multiply
    2,213.10x = 3,319.71 × 914.25
  4. Step 4: Simplify right side
    2,213.10x = 3,035,044.87
  5. Step 5: Solve for x
    x = 3,035,044.87/2,213.10
  6. Step 6: Final answer
    x = 1,371.40

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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.