Home / 5,114.92-7,672.35-1,315.56

Finding the Fourth Proportional to 5,114.92, 7,672.35 and 1,315.56

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Solution

The fourth proportional to 5,114.92, 7,672.35 and 1,315.56 is: 1,973.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,114.92 : 7,672.35 = 1,315.56 : x
  2. Step 2: Convert to fraction form
    5,114.92/7,672.35 = 1,315.56/x
  3. Step 3: Cross multiply
    5,114.92x = 7,672.35 × 1,315.56
  4. Step 4: Simplify right side
    5,114.92x = 10,093,421.76
  5. Step 5: Solve for x
    x = 10,093,421.76/5,114.92
  6. Step 6: Final answer
    x = 1,973.33

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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.