Home / 4,781.79-7,173.13-1,860.32

Finding the Fourth Proportional to 4,781.79, 7,173.13 and 1,860.32

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Solution

The fourth proportional to 4,781.79, 7,173.13 and 1,860.32 is: 2,790.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,781.79 : 7,173.13 = 1,860.32 : x
  2. Step 2: Convert to fraction form
    4,781.79/7,173.13 = 1,860.32/x
  3. Step 3: Cross multiply
    4,781.79x = 7,173.13 × 1,860.32
  4. Step 4: Simplify right side
    4,781.79x = 13,344,317.20
  5. Step 5: Solve for x
    x = 13,344,317.20/4,781.79
  6. Step 6: Final answer
    x = 2,790.65

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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.