Home / 3,930.93-5,420.70-2,737.35

Finding the Fourth Proportional to 3,930.93, 5,420.70 and 2,737.35

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Solution

The fourth proportional to 3,930.93, 5,420.70 and 2,737.35 is: 3,774.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,930.93 : 5,420.70 = 2,737.35 : x
  2. Step 2: Convert to fraction form
    3,930.93/5,420.70 = 2,737.35/x
  3. Step 3: Cross multiply
    3,930.93x = 5,420.70 × 2,737.35
  4. Step 4: Simplify right side
    3,930.93x = 14,838,353.15
  5. Step 5: Solve for x
    x = 14,838,353.15/3,930.93
  6. Step 6: Final answer
    x = 3,774.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.