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Finding the Fourth Proportional to 3,058.52, 4,587.78 and 750

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Solution

The fourth proportional to 3,058.52, 4,587.78 and 750 is: 1,125

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,058.52 : 4,587.78 = 750 : x
  2. Step 2: Convert to fraction form
    3,058.52/4,587.78 = 750/x
  3. Step 3: Cross multiply
    3,058.52x = 4,587.78 × 750
  4. Step 4: Simplify right side
    3,058.52x = 3,440,835
  5. Step 5: Solve for x
    x = 3,440,835/3,058.52
  6. Step 6: Final answer
    x = 1,125

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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.