Home / 3,931.53-5,419.22-2,984.24

Finding the Fourth Proportional to 3,931.53, 5,419.22 and 2,984.24

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Solution

The fourth proportional to 3,931.53, 5,419.22 and 2,984.24 is: 4,113.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,931.53 : 5,419.22 = 2,984.24 : x
  2. Step 2: Convert to fraction form
    3,931.53/5,419.22 = 2,984.24/x
  3. Step 3: Cross multiply
    3,931.53x = 5,419.22 × 2,984.24
  4. Step 4: Simplify right side
    3,931.53x = 16,172,211.08
  5. Step 5: Solve for x
    x = 16,172,211.08/3,931.53
  6. Step 6: Final answer
    x = 4,113.47

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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.