Home / 2,840.18-4,249.13-1,868.18

Finding the Fourth Proportional to 2,840.18, 4,249.13 and 1,868.18

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Solution

The fourth proportional to 2,840.18, 4,249.13 and 1,868.18 is: 2,794.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,840.18 : 4,249.13 = 1,868.18 : x
  2. Step 2: Convert to fraction form
    2,840.18/4,249.13 = 1,868.18/x
  3. Step 3: Cross multiply
    2,840.18x = 4,249.13 × 1,868.18
  4. Step 4: Simplify right side
    2,840.18x = 7,938,109.10
  5. Step 5: Solve for x
    x = 7,938,109.10/2,840.18
  6. Step 6: Final answer
    x = 2,794.94

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1.5x scale

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.