Home / 2,788.36-4,180.08-1,058.20

Finding the Fourth Proportional to 2,788.36, 4,180.08 and 1,058.20

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Solution

The fourth proportional to 2,788.36, 4,180.08 and 1,058.20 is: 1,586.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.36 : 4,180.08 = 1,058.20 : x
  2. Step 2: Convert to fraction form
    2,788.36/4,180.08 = 1,058.20/x
  3. Step 3: Cross multiply
    2,788.36x = 4,180.08 × 1,058.20
  4. Step 4: Simplify right side
    2,788.36x = 4,423,360.66
  5. Step 5: Solve for x
    x = 4,423,360.66/2,788.36
  6. Step 6: Final answer
    x = 1,586.37

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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.