Home / 2,688.41-3,711.63-1,758.53

Finding the Fourth Proportional to 2,688.41, 3,711.63 and 1,758.53

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Solution

The fourth proportional to 2,688.41, 3,711.63 and 1,758.53 is: 2,427.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.41 : 3,711.63 = 1,758.53 : x
  2. Step 2: Convert to fraction form
    2,688.41/3,711.63 = 1,758.53/x
  3. Step 3: Cross multiply
    2,688.41x = 3,711.63 × 1,758.53
  4. Step 4: Simplify right side
    2,688.41x = 6,527,012.70
  5. Step 5: Solve for x
    x = 6,527,012.70/2,688.41
  6. Step 6: Final answer
    x = 2,427.83

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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.