Home / 2,786.13-4,182.08-1,868.10

Finding the Fourth Proportional to 2,786.13, 4,182.08 and 1,868.10

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Solution

The fourth proportional to 2,786.13, 4,182.08 and 1,868.10 is: 2,804.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786.13 : 4,182.08 = 1,868.10 : x
  2. Step 2: Convert to fraction form
    2,786.13/4,182.08 = 1,868.10/x
  3. Step 3: Cross multiply
    2,786.13x = 4,182.08 × 1,868.10
  4. Step 4: Simplify right side
    2,786.13x = 7,812,543.65
  5. Step 5: Solve for x
    x = 7,812,543.65/2,786.13
  6. Step 6: Final answer
    x = 2,804.08

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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.