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Finding the Fourth Proportional to 1,058.11, 1,587.52 and 510.22

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Solution

The fourth proportional to 1,058.11, 1,587.52 and 510.22 is: 765.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,058.11 : 1,587.52 = 510.22 : x
  2. Step 2: Convert to fraction form
    1,058.11/1,587.52 = 510.22/x
  3. Step 3: Cross multiply
    1,058.11x = 1,587.52 × 510.22
  4. Step 4: Simplify right side
    1,058.11x = 809,992.98
  5. Step 5: Solve for x
    x = 809,992.98/1,058.11
  6. Step 6: Final answer
    x = 765.51

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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.