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Finding the Fourth Proportional to 2,058.95, 3,088.41 and 519.95

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Solution

The fourth proportional to 2,058.95, 3,088.41 and 519.95 is: 779.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,058.95 : 3,088.41 = 519.95 : x
  2. Step 2: Convert to fraction form
    2,058.95/3,088.41 = 519.95/x
  3. Step 3: Cross multiply
    2,058.95x = 3,088.41 × 519.95
  4. Step 4: Simplify right side
    2,058.95x = 1,605,803.34
  5. Step 5: Solve for x
    x = 1,605,803.34/2,058.95
  6. Step 6: Final answer
    x = 779.92

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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.