Home / 4,312.71-5,953.41-2,720.79

Finding the Fourth Proportional to 4,312.71, 5,953.41 and 2,720.79

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Solution

The fourth proportional to 4,312.71, 5,953.41 and 2,720.79 is: 3,755.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,312.71 : 5,953.41 = 2,720.79 : x
  2. Step 2: Convert to fraction form
    4,312.71/5,953.41 = 2,720.79/x
  3. Step 3: Cross multiply
    4,312.71x = 5,953.41 × 2,720.79
  4. Step 4: Simplify right side
    4,312.71x = 16,197,978.39
  5. Step 5: Solve for x
    x = 16,197,978.39/4,312.71
  6. Step 6: Final answer
    x = 3,755.87

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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.