Home / 4,177.64-6,261.79-1,981.77

Finding the Fourth Proportional to 4,177.64, 6,261.79 and 1,981.77

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Solution

The fourth proportional to 4,177.64, 6,261.79 and 1,981.77 is: 2,970.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,177.64 : 6,261.79 = 1,981.77 : x
  2. Step 2: Convert to fraction form
    4,177.64/6,261.79 = 1,981.77/x
  3. Step 3: Cross multiply
    4,177.64x = 6,261.79 × 1,981.77
  4. Step 4: Simplify right side
    4,177.64x = 12,409,402.85
  5. Step 5: Solve for x
    x = 12,409,402.85/4,177.64
  6. Step 6: Final answer
    x = 2,970.43

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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.