Home / 1,748.41-2,620.11-1,315.87

Finding the Fourth Proportional to 1,748.41, 2,620.11 and 1,315.87

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Solution

The fourth proportional to 1,748.41, 2,620.11 and 1,315.87 is: 1,971.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,748.41 : 2,620.11 = 1,315.87 : x
  2. Step 2: Convert to fraction form
    1,748.41/2,620.11 = 1,315.87/x
  3. Step 3: Cross multiply
    1,748.41x = 2,620.11 × 1,315.87
  4. Step 4: Simplify right side
    1,748.41x = 3,447,724.15
  5. Step 5: Solve for x
    x = 3,447,724.15/1,748.41
  6. Step 6: Final answer
    x = 1,971.92

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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.