Home / 2,920.14-4,029.09-1,661.07

Finding the Fourth Proportional to 2,920.14, 4,029.09 and 1,661.07

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Solution

The fourth proportional to 2,920.14, 4,029.09 and 1,661.07 is: 2,291.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.14 : 4,029.09 = 1,661.07 : x
  2. Step 2: Convert to fraction form
    2,920.14/4,029.09 = 1,661.07/x
  3. Step 3: Cross multiply
    2,920.14x = 4,029.09 × 1,661.07
  4. Step 4: Simplify right side
    2,920.14x = 6,692,600.53
  5. Step 5: Solve for x
    x = 6,692,600.53/2,920.14
  6. Step 6: Final answer
    x = 2,291.88

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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.