Home / 7,351.79-10,145.55-3,994.67

Finding the Fourth Proportional to 7,351.79, 10,145.55 and 3,994.67

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Solution

The fourth proportional to 7,351.79, 10,145.55 and 3,994.67 is: 5,512.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,351.79 : 10,145.55 = 3,994.67 : x
  2. Step 2: Convert to fraction form
    7,351.79/10,145.55 = 3,994.67/x
  3. Step 3: Cross multiply
    7,351.79x = 10,145.55 × 3,994.67
  4. Step 4: Simplify right side
    7,351.79x = 40,528,124.22
  5. Step 5: Solve for x
    x = 40,528,124.22/7,351.79
  6. Step 6: Final answer
    x = 5,512.69

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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.