Home / 2,489.19-3,435.51-1,580.97

Finding the Fourth Proportional to 2,489.19, 3,435.51 and 1,580.97

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Solution

The fourth proportional to 2,489.19, 3,435.51 and 1,580.97 is: 2,182.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489.19 : 3,435.51 = 1,580.97 : x
  2. Step 2: Convert to fraction form
    2,489.19/3,435.51 = 1,580.97/x
  3. Step 3: Cross multiply
    2,489.19x = 3,435.51 × 1,580.97
  4. Step 4: Simplify right side
    2,489.19x = 5,431,438.24
  5. Step 5: Solve for x
    x = 5,431,438.24/2,489.19
  6. Step 6: Final answer
    x = 2,182.01

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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.