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Finding the Fourth Proportional to 3,129.04, 4,693.51 and 937.68

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Solution

The fourth proportional to 3,129.04, 4,693.51 and 937.68 is: 1,406.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.04 : 4,693.51 = 937.68 : x
  2. Step 2: Convert to fraction form
    3,129.04/4,693.51 = 937.68/x
  3. Step 3: Cross multiply
    3,129.04x = 4,693.51 × 937.68
  4. Step 4: Simplify right side
    3,129.04x = 4,401,010.46
  5. Step 5: Solve for x
    x = 4,401,010.46/3,129.04
  6. Step 6: Final answer
    x = 1,406.51

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1.5x scale

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.