Home / 4,781.70-7,172.55-1,862.06

Finding the Fourth Proportional to 4,781.70, 7,172.55 and 1,862.06

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Solution

The fourth proportional to 4,781.70, 7,172.55 and 1,862.06 is: 2,793.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,781.70 : 7,172.55 = 1,862.06 : x
  2. Step 2: Convert to fraction form
    4,781.70/7,172.55 = 1,862.06/x
  3. Step 3: Cross multiply
    4,781.70x = 7,172.55 × 1,862.06
  4. Step 4: Simplify right side
    4,781.70x = 13,355,682.59
  5. Step 5: Solve for x
    x = 13,355,682.59/4,781.70
  6. Step 6: Final answer
    x = 2,793.08

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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.