Home / 1,855.08-2,540.52-1,830.78

Finding the Fourth Proportional to 1,855.08, 2,540.52 and 1,830.78

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Solution

The fourth proportional to 1,855.08, 2,540.52 and 1,830.78 is: 2,507.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,855.08 : 2,540.52 = 1,830.78 : x
  2. Step 2: Convert to fraction form
    1,855.08/2,540.52 = 1,830.78/x
  3. Step 3: Cross multiply
    1,855.08x = 2,540.52 × 1,830.78
  4. Step 4: Simplify right side
    1,855.08x = 4,651,133.21
  5. Step 5: Solve for x
    x = 4,651,133.21/1,855.08
  6. Step 6: Final answer
    x = 2,507.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.