Home / 7,612.68-11,419.35-2,931.02

Finding the Fourth Proportional to 7,612.68, 11,419.35 and 2,931.02

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Solution

The fourth proportional to 7,612.68, 11,419.35 and 2,931.02 is: 4,396.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,612.68 : 11,419.35 = 2,931.02 : x
  2. Step 2: Convert to fraction form
    7,612.68/11,419.35 = 2,931.02/x
  3. Step 3: Cross multiply
    7,612.68x = 11,419.35 × 2,931.02
  4. Step 4: Simplify right side
    7,612.68x = 33,470,286.14
  5. Step 5: Solve for x
    x = 33,470,286.14/7,612.68
  6. Step 6: Final answer
    x = 4,396.65

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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.