Home / 2,301.20-3,175.74-1,357.64

Finding the Fourth Proportional to 2,301.20, 3,175.74 and 1,357.64

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Solution

The fourth proportional to 2,301.20, 3,175.74 and 1,357.64 is: 1,873.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,301.20 : 3,175.74 = 1,357.64 : x
  2. Step 2: Convert to fraction form
    2,301.20/3,175.74 = 1,357.64/x
  3. Step 3: Cross multiply
    2,301.20x = 3,175.74 × 1,357.64
  4. Step 4: Simplify right side
    2,301.20x = 4,311,511.65
  5. Step 5: Solve for x
    x = 4,311,511.65/2,301.20
  6. Step 6: Final answer
    x = 1,873.59

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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.