Home / 4,970.72-6,857.20-3,201.76

Finding the Fourth Proportional to 4,970.72, 6,857.20 and 3,201.76

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Solution

The fourth proportional to 4,970.72, 6,857.20 and 3,201.76 is: 4,416.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,970.72 : 6,857.20 = 3,201.76 : x
  2. Step 2: Convert to fraction form
    4,970.72/6,857.20 = 3,201.76/x
  3. Step 3: Cross multiply
    4,970.72x = 6,857.20 × 3,201.76
  4. Step 4: Simplify right side
    4,970.72x = 21,955,108.67
  5. Step 5: Solve for x
    x = 21,955,108.67/4,970.72
  6. Step 6: Final answer
    x = 4,416.89

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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.