Home / 1,975.11-2,947.33-1,712.67

Finding the Fourth Proportional to 1,975.11, 2,947.33 and 1,712.67

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Solution

The fourth proportional to 1,975.11, 2,947.33 and 1,712.67 is: 2,555.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.11 : 2,947.33 = 1,712.67 : x
  2. Step 2: Convert to fraction form
    1,975.11/2,947.33 = 1,712.67/x
  3. Step 3: Cross multiply
    1,975.11x = 2,947.33 × 1,712.67
  4. Step 4: Simplify right side
    1,975.11x = 5,047,803.67
  5. Step 5: Solve for x
    x = 5,047,803.67/1,975.11
  6. Step 6: Final answer
    x = 2,555.71

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.