Home / 2,670.40-3,684-1,675.52

Finding the Fourth Proportional to 2,670.40, 3,684 and 1,675.52

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Solution

The fourth proportional to 2,670.40, 3,684 and 1,675.52 is: 2,311.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,670.40 : 3,684 = 1,675.52 : x
  2. Step 2: Convert to fraction form
    2,670.40/3,684 = 1,675.52/x
  3. Step 3: Cross multiply
    2,670.40x = 3,684 × 1,675.52
  4. Step 4: Simplify right side
    2,670.40x = 6,172,615.68
  5. Step 5: Solve for x
    x = 6,172,615.68/2,670.40
  6. Step 6: Final answer
    x = 2,311.49

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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.