Home / 4,742.55-7,114.60-1,781.23

Finding the Fourth Proportional to 4,742.55, 7,114.60 and 1,781.23

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Solution

The fourth proportional to 4,742.55, 7,114.60 and 1,781.23 is: 2,672.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,742.55 : 7,114.60 = 1,781.23 : x
  2. Step 2: Convert to fraction form
    4,742.55/7,114.60 = 1,781.23/x
  3. Step 3: Cross multiply
    4,742.55x = 7,114.60 × 1,781.23
  4. Step 4: Simplify right side
    4,742.55x = 12,672,716.72
  5. Step 5: Solve for x
    x = 12,672,716.72/4,742.55
  6. Step 6: Final answer
    x = 2,672.13

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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.