Home / 2,208.10-3,047.13-1,213.35

Finding the Fourth Proportional to 2,208.10, 3,047.13 and 1,213.35

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Solution

The fourth proportional to 2,208.10, 3,047.13 and 1,213.35 is: 1,674.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,208.10 : 3,047.13 = 1,213.35 : x
  2. Step 2: Convert to fraction form
    2,208.10/3,047.13 = 1,213.35/x
  3. Step 3: Cross multiply
    2,208.10x = 3,047.13 × 1,213.35
  4. Step 4: Simplify right side
    2,208.10x = 3,697,229.12
  5. Step 5: Solve for x
    x = 3,697,229.12/2,208.10
  6. Step 6: Final answer
    x = 1,674.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.