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Finding the Fourth Proportional to 5,058.29, 6,980.29 and 2,820.55

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Solution

The fourth proportional to 5,058.29, 6,980.29 and 2,820.55 is: 3,892.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,058.29 : 6,980.29 = 2,820.55 : x
  2. Step 2: Convert to fraction form
    5,058.29/6,980.29 = 2,820.55/x
  3. Step 3: Cross multiply
    5,058.29x = 6,980.29 × 2,820.55
  4. Step 4: Simplify right side
    5,058.29x = 19,688,229.88
  5. Step 5: Solve for x
    x = 19,688,229.88/5,058.29
  6. Step 6: Final answer
    x = 3,892.27

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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.