Home / 3,129.60-4,700.43-3,003.39

Finding the Fourth Proportional to 3,129.60, 4,700.43 and 3,003.39

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Solution

The fourth proportional to 3,129.60, 4,700.43 and 3,003.39 is: 4,510.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.60 : 4,700.43 = 3,003.39 : x
  2. Step 2: Convert to fraction form
    3,129.60/4,700.43 = 3,003.39/x
  3. Step 3: Cross multiply
    3,129.60x = 4,700.43 × 3,003.39
  4. Step 4: Simplify right side
    3,129.60x = 14,117,224.46
  5. Step 5: Solve for x
    x = 14,117,224.46/3,129.60
  6. Step 6: Final answer
    x = 4,510.87

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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.