Home / 3,749.82-5,175-2,488.65

Finding the Fourth Proportional to 3,749.82, 5,175 and 2,488.65

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Solution

The fourth proportional to 3,749.82, 5,175 and 2,488.65 is: 3,434.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,749.82 : 5,175 = 2,488.65 : x
  2. Step 2: Convert to fraction form
    3,749.82/5,175 = 2,488.65/x
  3. Step 3: Cross multiply
    3,749.82x = 5,175 × 2,488.65
  4. Step 4: Simplify right side
    3,749.82x = 12,878,763.75
  5. Step 5: Solve for x
    x = 12,878,763.75/3,749.82
  6. Step 6: Final answer
    x = 3,434.50

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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.