Home / 2,213.04-3,319.77-653.05

Finding the Fourth Proportional to 2,213.04, 3,319.77 and 653.05

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Solution

The fourth proportional to 2,213.04, 3,319.77 and 653.05 is: 979.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,213.04 : 3,319.77 = 653.05 : x
  2. Step 2: Convert to fraction form
    2,213.04/3,319.77 = 653.05/x
  3. Step 3: Cross multiply
    2,213.04x = 3,319.77 × 653.05
  4. Step 4: Simplify right side
    2,213.04x = 2,167,975.80
  5. Step 5: Solve for x
    x = 2,167,975.80/2,213.04
  6. Step 6: Final answer
    x = 979.64

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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.