Home / 2,789.06-4,181.10-1,058.90

Finding the Fourth Proportional to 2,789.06, 4,181.10 and 1,058.90

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Solution

The fourth proportional to 2,789.06, 4,181.10 and 1,058.90 is: 1,587.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.06 : 4,181.10 = 1,058.90 : x
  2. Step 2: Convert to fraction form
    2,789.06/4,181.10 = 1,058.90/x
  3. Step 3: Cross multiply
    2,789.06x = 4,181.10 × 1,058.90
  4. Step 4: Simplify right side
    2,789.06x = 4,427,345.88
  5. Step 5: Solve for x
    x = 4,427,345.88/2,789.06
  6. Step 6: Final answer
    x = 1,587.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.