Home / 1,816.39-2,506.82-1,108.65

Finding the Fourth Proportional to 1,816.39, 2,506.82 and 1,108.65

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Solution

The fourth proportional to 1,816.39, 2,506.82 and 1,108.65 is: 1,530.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,816.39 : 2,506.82 = 1,108.65 : x
  2. Step 2: Convert to fraction form
    1,816.39/2,506.82 = 1,108.65/x
  3. Step 3: Cross multiply
    1,816.39x = 2,506.82 × 1,108.65
  4. Step 4: Simplify right side
    1,816.39x = 2,779,189.85
  5. Step 5: Solve for x
    x = 2,779,189.85/1,816.39
  6. Step 6: Final answer
    x = 1,530.06

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1.5x scale

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.