Home / 3,129.84-4,676.83-2,385.34

Finding the Fourth Proportional to 3,129.84, 4,676.83 and 2,385.34

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Solution

The fourth proportional to 3,129.84, 4,676.83 and 2,385.34 is: 3,564.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.84 : 4,676.83 = 2,385.34 : x
  2. Step 2: Convert to fraction form
    3,129.84/4,676.83 = 2,385.34/x
  3. Step 3: Cross multiply
    3,129.84x = 4,676.83 × 2,385.34
  4. Step 4: Simplify right side
    3,129.84x = 11,155,829.67
  5. Step 5: Solve for x
    x = 11,155,829.67/3,129.84
  6. Step 6: Final answer
    x = 3,564.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.