Home / 4,140.71-5,717.84-2,817.58

Finding the Fourth Proportional to 4,140.71, 5,717.84 and 2,817.58

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Solution

The fourth proportional to 4,140.71, 5,717.84 and 2,817.58 is: 3,890.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,140.71 : 5,717.84 = 2,817.58 : x
  2. Step 2: Convert to fraction form
    4,140.71/5,717.84 = 2,817.58/x
  3. Step 3: Cross multiply
    4,140.71x = 5,717.84 × 2,817.58
  4. Step 4: Simplify right side
    4,140.71x = 16,110,428.95
  5. Step 5: Solve for x
    x = 16,110,428.95/4,140.71
  6. Step 6: Final answer
    x = 3,890.74

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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.