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Finding the Fourth Proportional to 5,757.71, 8,640.65 and 2,635.76

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Solution

The fourth proportional to 5,757.71, 8,640.65 and 2,635.76 is: 3,955.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,757.71 : 8,640.65 = 2,635.76 : x
  2. Step 2: Convert to fraction form
    5,757.71/8,640.65 = 2,635.76/x
  3. Step 3: Cross multiply
    5,757.71x = 8,640.65 × 2,635.76
  4. Step 4: Simplify right side
    5,757.71x = 22,774,707.84
  5. Step 5: Solve for x
    x = 22,774,707.84/5,757.71
  6. Step 6: Final answer
    x = 3,955.52

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1.5x scale

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.