Home / 2,229.12-3,080.16-1,709.64

Finding the Fourth Proportional to 2,229.12, 3,080.16 and 1,709.64

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Solution

The fourth proportional to 2,229.12, 3,080.16 and 1,709.64 is: 2,362.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,229.12 : 3,080.16 = 1,709.64 : x
  2. Step 2: Convert to fraction form
    2,229.12/3,080.16 = 1,709.64/x
  3. Step 3: Cross multiply
    2,229.12x = 3,080.16 × 1,709.64
  4. Step 4: Simplify right side
    2,229.12x = 5,265,964.74
  5. Step 5: Solve for x
    x = 5,265,964.74/2,229.12
  6. Step 6: Final answer
    x = 2,362.35

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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.