Home / 2,029.31-2,800.39-1,145.19

Finding the Fourth Proportional to 2,029.31, 2,800.39 and 1,145.19

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Solution

The fourth proportional to 2,029.31, 2,800.39 and 1,145.19 is: 1,580.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,029.31 : 2,800.39 = 1,145.19 : x
  2. Step 2: Convert to fraction form
    2,029.31/2,800.39 = 1,145.19/x
  3. Step 3: Cross multiply
    2,029.31x = 2,800.39 × 1,145.19
  4. Step 4: Simplify right side
    2,029.31x = 3,206,988.41
  5. Step 5: Solve for x
    x = 3,206,988.41/2,029.31
  6. Step 6: Final answer
    x = 1,580.34

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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.