Home / 2,115.67-2,919.87-1,760.97

Finding the Fourth Proportional to 2,115.67, 2,919.87 and 1,760.97

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Solution

The fourth proportional to 2,115.67, 2,919.87 and 1,760.97 is: 2,430.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,115.67 : 2,919.87 = 1,760.97 : x
  2. Step 2: Convert to fraction form
    2,115.67/2,919.87 = 1,760.97/x
  3. Step 3: Cross multiply
    2,115.67x = 2,919.87 × 1,760.97
  4. Step 4: Simplify right side
    2,115.67x = 5,141,803.47
  5. Step 5: Solve for x
    x = 5,141,803.47/2,115.67
  6. Step 6: Final answer
    x = 2,430.34

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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.