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Finding the Fourth Proportional to 1,058.07, 1,586.20 and 510.64

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Solution

The fourth proportional to 1,058.07, 1,586.20 and 510.64 is: 765.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,058.07 : 1,586.20 = 510.64 : x
  2. Step 2: Convert to fraction form
    1,058.07/1,586.20 = 510.64/x
  3. Step 3: Cross multiply
    1,058.07x = 1,586.20 × 510.64
  4. Step 4: Simplify right side
    1,058.07x = 809,979.79
  5. Step 5: Solve for x
    x = 809,979.79/1,058.07
  6. Step 6: Final answer
    x = 765.52

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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.