Home / 1,860.13-2,786.55-1,586.80

Finding the Fourth Proportional to 1,860.13, 2,786.55 and 1,586.80

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Solution

The fourth proportional to 1,860.13, 2,786.55 and 1,586.80 is: 2,377.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,860.13 : 2,786.55 = 1,586.80 : x
  2. Step 2: Convert to fraction form
    1,860.13/2,786.55 = 1,586.80/x
  3. Step 3: Cross multiply
    1,860.13x = 2,786.55 × 1,586.80
  4. Step 4: Simplify right side
    1,860.13x = 4,421,697.54
  5. Step 5: Solve for x
    x = 4,421,697.54/1,860.13
  6. Step 6: Final answer
    x = 2,377.09

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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.