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Finding the Fourth Proportional to 3,058.60, 4,587.90 and 750.10

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Solution

The fourth proportional to 3,058.60, 4,587.90 and 750.10 is: 1,125.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,058.60 : 4,587.90 = 750.10 : x
  2. Step 2: Convert to fraction form
    3,058.60/4,587.90 = 750.10/x
  3. Step 3: Cross multiply
    3,058.60x = 4,587.90 × 750.10
  4. Step 4: Simplify right side
    3,058.60x = 3,441,383.79
  5. Step 5: Solve for x
    x = 3,441,383.79/3,058.60
  6. Step 6: Final answer
    x = 1,125.15

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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.