Home / 2,213.20-3,055.58-1,551.16

Finding the Fourth Proportional to 2,213.20, 3,055.58 and 1,551.16

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Solution

The fourth proportional to 2,213.20, 3,055.58 and 1,551.16 is: 2,141.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,213.20 : 3,055.58 = 1,551.16 : x
  2. Step 2: Convert to fraction form
    2,213.20/3,055.58 = 1,551.16/x
  3. Step 3: Cross multiply
    2,213.20x = 3,055.58 × 1,551.16
  4. Step 4: Simplify right side
    2,213.20x = 4,739,693.47
  5. Step 5: Solve for x
    x = 4,739,693.47/2,213.20
  6. Step 6: Final answer
    x = 2,141.56

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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.