Home / 2,810.39-4,215.58-1,249.99

Finding the Fourth Proportional to 2,810.39, 4,215.58 and 1,249.99

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Solution

The fourth proportional to 2,810.39, 4,215.58 and 1,249.99 is: 1,874.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,810.39 : 4,215.58 = 1,249.99 : x
  2. Step 2: Convert to fraction form
    2,810.39/4,215.58 = 1,249.99/x
  3. Step 3: Cross multiply
    2,810.39x = 4,215.58 × 1,249.99
  4. Step 4: Simplify right side
    2,810.39x = 5,269,419.18
  5. Step 5: Solve for x
    x = 5,269,419.18/2,810.39
  6. Step 6: Final answer
    x = 1,874.98

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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.