Home / 2,855.13-3,937.46-1,860.05

Finding the Fourth Proportional to 2,855.13, 3,937.46 and 1,860.05

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Solution

The fourth proportional to 2,855.13, 3,937.46 and 1,860.05 is: 2,565.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,855.13 : 3,937.46 = 1,860.05 : x
  2. Step 2: Convert to fraction form
    2,855.13/3,937.46 = 1,860.05/x
  3. Step 3: Cross multiply
    2,855.13x = 3,937.46 × 1,860.05
  4. Step 4: Simplify right side
    2,855.13x = 7,323,843.49
  5. Step 5: Solve for x
    x = 7,323,843.49/2,855.13
  6. Step 6: Final answer
    x = 2,565.15

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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.